Hi. I currently am thinking of upgrading my CPU and RAM. I have atm 2GB and an Opteron 170 overclocked to 2.8. I read on some websites that Quad cores and 4GB are the way to go if I had vista 64 bit or something. However I don't plan on getting it and will continue to use XP for a while until I finally buy a new system. I want to play Crysis though (have a 8800GTS 512), so I am curious, which processor would you guys recommend for this? A core2quad or core2duo? My main thing is gaming, I don't really do anything else on this comp. Also, for WinXP32, would 2GB be fine? Or must I get 4GB to play crysis fine? (I take it crysis is the most demanding game for a long shot) I am estimating a budget of $400 by the end of June probably. (Including memory CPU and motherboard) Thanks.