Some of the good xbox games were ported from pc, not to it. Games like unreal championship (UT2003), serious sam, morrowind, or even the newer ones like halflife2 or doom3. These games are on xbox and pc... OH! There is one game i know that is being ported from xbox to pc, Halo. I hear the port to pc will be a really great game, even though its good on xbox to begin with...