Recommend me a PC game

I have a $25 gift card to best buy and just built a new PC.

Specs:

Intel Core 2 Duo E6750

EVGA 512MB 8800GTS (G92)

2GB Crucial Ballistix DDR2 800

The games I currently own are Crysis, Call of Duty 4, Unreal Tournament 3, and Team Fortress 2.

Any Genre is fine, although I prefer FPS and RTS.

Thank you guys.

I recommend you Star Craft, the WarCraft series and the half-life series.

If you haven't played those yet of course.

I recommend you Star Craft, the WarCraft series and the half-life series.

If you haven't played those yet of course.

Sliverwarrior

Darwinia.

8)

Stalker is $30 in Best Buy. Definitely get it, if you don't mind that extra $5. Shadow of Chernobyl is my favourite shooter this year and that means a lot.

Definitely pony up the extra cash and buy Orange Box or Crysis.

Bioshock if you like single player games

But if you can wait until February,then buy Assasin's Creed.