Hotdog Stand: $50 Multiplayer Games: $96
Best Computer Setup: $4442
(Desk & Chair = $760, remainder = $3682)

$200 Case
$570 Monitor
$360 Motherboard
$610 CPU
$830 GPU
$210 HDD
$200 Power
$200 RAM
$64 Fan
$90 Cooler
$68 Keyboard
$160 Mouse
$120 Headphones
$300 Desk
$460 Chair

*Note: I'm not using the most expensive table, I don't prefer the look of the rainbow desk. Also, I don't see a reason yet to use the SDDs.
I use a notepad to mark off the items as I go.