In the coming weeks Team Fortress 2 wil be coming out on mac, and with this release, there will be a sale on it. When it comes out, we urge you to get it, so that we may all play together. But please, if you already own it, dont try to buy it again. You WILL look very silly.

There is also the option of buying the orange box, and at it's current low price (due to the mac release), it a great way to pick up Half Life 2, Portal and TF2.