Team Fortress 2 is on sale for 2 dollars and 50 cents until 4pm CST today. If you don’t have a steam account, go get one for this. You won’t regret it. When you upgrade your computer later, you’ll be happy to have this game, and access to all of the HL2 mods available.
That’s right, after UT3’s abysmal launch, Epic has come back to support it. The Titan patch finally landed:
http://www.shacknews.com/onearticle.x/57517
UT3’s retail copy key can be input into Steam to activate it as a Steam game (or not, but you get Steam Achievements if you do). Steam is hosting a free weekend of UT3 play to celebrate the launch, and the game is 40% off ($20 to $12) during this duration as well. I definitely recommend installing the free trial and seeing if the game runs. Unreal Tournament is always a great game to play, and have, for LANs.