This is just my default caster build so I did not specalize any school of magic. It might seem a little basic but I plan to expand and create my more advanced arcane builds soon. With this character I play an elf for the extra DEX as well as the elven weapon proficiency. Alignment does not matter in this build unless you wish to become a Pale Master which I will not be doing in this build. Even with this combo since I focus magic I will not wear armor. As for spells I will not say what to use, being that it comes down to the situation have a rough idea what you will be fighting and pick from there.

Class Combos, Wizard/Arcane Archer

Stats

Strength 9
Dexterity 14
Constitution 12
Wisdom 12
Inteligence 17
Charisma 10

Skills
Concentration 4
Lore 4
Persuade 2
Spellcraft 4
Spot 2

Feats
Combat Casting

Spells
Magic Missle
Sleep
Sumon Creature 1
Magic Weapon
Shelgarn's Persistant Dagger
Burning Hands

Levels past Character Creation

Level 2 Concentration+1 Lore+1 Listen+1 Spellcraft+1, Mage Armor Scare
Level 3 Concentration+1 Lore+1 Spellcraft+1 Spot+1, Weapon Focus Longbow, Melf's Acid Arrow Web
Level 4 INT+1, Concentration+1 Lore+1 Spellcraft+1 Listen+1 Heal+1, Combust Fox's Cunning
Level 5 Concentration+1 Lore+1 Spellcraft+1 Spot+1 Heal+1, Spell Penetration, Fireball Summon Creature 3
Level 6 Concentration+1 Lore+1 Spellcraft+1 Heal+1 Listen+1, Greature Spell Penetration, Displacement Lightning Bolt
Level 7 Concentration+1 Lore+1 Spellcraft+1 Heal+1 Spot+1, Polymorph Self, Summon Creature 4
Level 8 INT+1, Concentration+1 Lore+1 Spellcraft+1 Heal+1 Persuade+1, Stoneskin Wall of Fire
Level 9 Concentration+1 Lore+1 Spellcraft+1 Heal+1 Spot+1, Brew Potion, Lesser Planar Binding Ball Lightning
Level 10 Concentration+1 Lore+1 Spellcraft+1 Heal+1 Listen+1, Craft Wand, Dominate Person Cone of Cold
Level 11 Concentration+1 Lore+1 Spellcraft+1 Heal+1 Spot+1, Planar Binding Chain Lightning
Level 12 INT+1, Concentration+1 Lore+1 Spellcraft+1 Heal+1 Persuade+2, Point Blank Shot, Summon Creature 6 Greater Missle Storm
Level 13 (AA) Spot+5 Listen+4
Level 14 (AA) Listen+7 Spot+2
Level 15 (AA) Spot+4 Listen+3 Hide+2, Improved Critical Longbow
Level 16 (AA) DEX+1, Listen+1 Spot+1 Hide+7
Level 17 (AA) Listen+1 Spot+1 Hide+7
Level 18 (AA) Listen+1 Spot+1 Hide+5 Move Silently+2, Alertness
Level 19 (AA) Listen+1 Spot+1 Hide+1 Move Silently+6
Level 20 (AA) DEX+1 LIsten+1 Spot+1 Hide+1 Move Silently+6
Level 21(AA) Listen+1 Spot+1 Hide+1 Move Silently+6, Epic Weapon Focus
Level 22 (AA) Listen+1 Spot+1 Hide+1 Move Silently+5 Lore+1
Level 23 (AA) Listen+1 Spot+1 Hide+1 Move Silently+1 Lore+5
Level 24 (AA) Listen+1 Spot+1 Hide+1 Move Silently+1 Lore+5, Rapid Shot
Level 25 (WIZ) Concentration+7, Protection from Spells Mordenkainen's Sword
Level 26 (AA) Listen+2 Spot+2 Hide+2 Move Silently+2 Lore+1
Level 27 (WIZ) Concentration+2 Spellcraft+5, Epic Spell Penetration Spell Mantel Great Thunderclap
Level 28 (WIZ) INT+1, Concentration+2 Spellcraft+5, Improved Combat Casting, Greater Planar Binding Sunburst
Level 29 (WIZ) Concentration+4 Spellcraft+3, Greater Sancutary Summon Creature 8
Level 30 (WIZ) Concentration+3 Spellcraft+4, Great Inteligence, Power Word Kill, Summon Creature 9

Intro
For this build I use a gnome for concentration bonus. This guide I build as a default sorcerer build being that the best combo is to make them a red dragon disciple. Besides that being a sorcerer will allow you to have a shorter spell count but they are more powerful.

Class Combo Sorcerer/Red Dragon Disciple

Stats

Strength 8
Dexterity 13
Constitution 14
Wisdom 10
Inteligence 12
Charisma 17

Skills
Concentration 4
Lore 4
Spellcasting 4

Feats
Combat Casting

Spells

Daze
Acid Splash
Ray of Frost
Electric Jolt
Magic Missle
Color Spray

Level List

Level 2 Concentration+1 Spellcraft+1 Lore+1, Light
Level 3 Concentration+1 Spellcraft+1 Lore+1, Greater Spell Focus, Burning Hands
Level 4 Concentration+1 Spellcraft+1 Lore+1, Resistance Continual Flame
Level 5 Concentration+1 Spellcraft+1 Lore+1, Scare Invisability
Level 6 (RDD) Heal+2 Concentration+1, Spell Penetration
Level 7 (RDD) Heal+2 Spellcraft+1
Level 8 (RDD) CHA+1 Heal+1 Concentration+1 Spellcraft+1
Level 9 (RDD) Spellcraft+1 Concentration+1 Spellcraft+1, Greater Spell Penetration
Level 10 (RDD) Concentration+1 Spellcraft+1 Heal+1
Level 11 (RDD) Lore+1 Spellcraft+2
Level 12 (RDD) STR+1, Heal+1 Spellcraft+1 Lore+1, Rapid Reload
Level 13 (Sorc) Concentration+3, Fireball
Level 14 (Sorc) Concentration+1 Spellcraft+1 Lore+1, Displacement
Level 15 (Sorc) Concentration+2 Spellcraft+1, Bestow Curse, Weapon Focus Light Crossbow
Level 16 (RDD) CHA+1, Spellcraft+2 Concentration+1
Level 17 (Sorc) Spellcraft+1 Concentration+1 Lore+1, Clarity
Level 18 (RDD) Spellcraft+1 Concentration+1 Lore+1, Improved Critical Light Crossbow
Level 19 (Sorc) Spellcraft+1 Concentration+1 Lore+2, Firebrand
Level 20 (RDD) Spellcraft+1 Concentration+1 Lore+2
Level 21 (RDD) Spellcraft+1 Concentration+1 Lore+2, Great Charisma
Level 22 (Sorc) Spellcraft+1 Concentration+1 Lore+2, Lesser Spell Mantle
Level 23 (Sorc) Spellcraft+1 Concentration+1 Lore+2, Chain Lightning
Level 24 (RDD) STR+1, Spellcraft+1 Concentration+1 Lore+2, Armor Skin
Level 25 (RDD) Spellcraft+1 Concentration+1 Lore+1 Heal+1
Level 26 (Sorc) Spellcraft+1 Concentration+1 Lore+1 Heal+1, Planar Binding
Level 27 (Sorc)Spellcraft+1 Concentration+1 Lore+1 Heal+1, Epic Spell Pent, Power word stun
Level 28 (RDD) CHA+1, Spellcraft+1 Concentration+1 Lore+1 Heal+1, Improved Combat Casting
Level 29 (RDD) Spellcraft+1 Concentration+1 Lore+1 Heal+1
Level 30 (Sorc) Spellcraft+1 Concentration+1 Lore+1 Heal+1, Epic Will, Great Thunderclap

For this build I play an elf for the extra dexterity bonus as well as the ability to use longbows as their weapon to not worry about being the front lines. I do not know what a good title for this druid is, you are more of a support druid rather than a DPS being that you will focus on keeping any allies in Multiplayer alive, or in single player your two animal companions. As well as if the fight is brought up close having the ability to get your animals to distract your enemies for you to sneak attack them. Being trained as a rouge is not intended so much for the ability to disarm traps and locks more so the ability to escape enemies.

Class Combo Druid/Rouge

Stats
Strength 13
Dexterity 16
Constitution 11
Wisdom 16
Inteligence 10
Charisma 10

Skills
Animal Empathy +4
Concentration+4
Heal+4
Persuade+2
Search+1

Feats
Point Blank Shot

For your animal companion for your first few levels I prefer the dire wolf, being that it has quite a high HP as well as the ability to knockdown making it so a few less enemies make it to your archery.

Level 2 (Druid) Animal Empathy+1 Concentration+1 Heal+1 Persuasion+1
Level 3 (Rouge) Hide+3 Open Lock+3 Search+2, Rapid Shot
Level 4 (Rouge) WIS+1, Hide+4 Search+4
Level 5 (Druid) Animal Empathy+1 Concentration+2 Heal+1
Level 6 (Rouge) Hide+2 Move Silently+4 Search+2, Lightning Reflexes
Level 7 (Druid) Animal Empathy+2 Concentration+2
Level 8 (Rouge) WIS+1, Disable Trap+3 Hide+1 Move Silently+1 Open Lock+2 Search+1
Level 9 (Druid) Animal Empathy+1 Concentration+2 Heal+2, Combat Casting
Level 10 (Rouge) Hide+3 Move Silently+2 Search+3
Level 11 (Druid) Animal Empathy+1 Concentration+1 Heal+2
Level 12 (Rouge) Dex+1, Hide+2 Move Silently+4 Search+2, Weapon Focus Longbow
Level 13 (Druid) Animal Empathy+1 Concentration+1 Heal+2
Level 14 (Rouge) Hide+2 Move Silently+4 Search+2
Level 15 (Druid) Animal Empathy+1 Concentration+2 Heal+1, Called Shot
Level 16 (Rouge) Dex+1, Hide+2 Move Silently+4 Search+2
Level 17 (Druid) Concentration+4
Level 18 (Rouge) Hide+2 Move Silently+2 Search+2 Heal+2, Empower Spell
Level 19 (Druid) Concentration+3 Animal Empathy+1, At this point I switch to the Brown Bear as your companion
Level 20 (Druid) Wis+1, Animal Empathy+4
Level 21 (Rouge) Hide+3 Move SIlently+2 Search+3, Slipery Mind, Epic Weapon Focus Longbow
Level 22 (Rouge) Hide+1 Move Silently+2 Search+1 Heal+4
Level 23 (Druid) Animal Empathy+2 Concentration+2
Level 24 (Druid) Wis+1, Animal Empathy+2 Heal+2, Great Wisdom
Level 25 (Druid) Animal Empathy+2 Heal+2
Level 26 (Druid) Animal Empathy+2 Heal+2
Level 27 (Druid) Animal Empathy+1 Concentration+2 Heal+1, Improved Combat Casting
Level 28 (Druid) Dex+1, Animal Empathy+1 Concentration+2 Heal+1
Level 29 (Druid) Animal Empathy+1 Concentration+2 Heal+1
Level 30 (Druid) Animal Empathy+1 Concentration+2 Heal+1, Great Wisdom 2

Spells
As for spells the most important thing is to get spells that can buff such as barkskin, magic fang, as well as healing spells, and spells that increase stats such as bulls strength. Save one slot in each level for summon animal, once you get the next level in the spell series replace the old one with a buffing spell.

For this build I play a half elf being that as a support character not being effected by sleep spells is very crucial.