*Sigh*
Ignore everyone above, the have no idea what they're talking about.
To be honest mate, you're graphics card isn't that great. You're going to be stuck browsing the net or using IM's cause solitaire is about all you're gonna be able to play, and it gets old quick.
Because i'm a nice guy, i will offer you a solution. I have completed all my games, and i've decided to quit PC gaming. I am willing, as my good deed for the day, to trade you my 7900GS for your shoddy 8800GTX. Then you will be able to play awesome games such as Half Life 2, Doom 3, Civilization 1 - 4 and Frogger.
Let me know.