Originally posted by: Rage3kMoiz
You're working with Socket 939 which is still great by most standards but getting difficult to maintain because of the lower availability of DDR RAM and Socket 939 CPUs. An upgrade to AM2 or Socket T would allow you to use DDR2 (or even DDR3, if you choose a P35-based board) and give you a much wider choice of processors available. It would cost a lot more than the video card upgrade though. The X1950PRO would give you about a 10-15FPS increase in all the games you play, so it'd be a very noticeable difference. The 8800GTS is another story altogether but only go for that if you're going to upgrade soon, since you wouldn't be getting the full performance benefit of buying an 8800 series card.