I am currently running a athlon x2 4200 socket 939, 7900GS 256mb, 2 gig of value ram and Windows xp. I am thinking of upgrading to a 8800gts, but I'm afraid my cpu will be a huge bottleneck. I want to run crysis, gears of war, and ut3 on my pc. Should I go for the 8800gts, or upgrade the cpu to a core 2? I dont have enough cash to do both, so any advice would be appreciated.. thanks..