I have Windows 7, 64 bit..Site that shows games that work for it?

Im looking into getting a PC game or two and wanted to know if there was a site that can tell me what games my PC can run? I\ve tried a few older games (1999) and they seem to run but, am leaning towards something like S.T.A.L.K.E.R (Chernobyl) or like that. Thanks for any help on this.HoustonTX224

http://www.systemrequirementslab.com/cyri/try it. :D