I'm having a new computer built and i'm having trouble selecting components that will get me the best performance for playing a game like crysis. i've never had a computer for gaming and want something really good. i don't know which card to get i know a little about the 3870 x2 but don't know if i should get 2 of them for crossfire and there is a 8800 gtx again should i get 2 for sli? but i don't know what ram or motherboard to match to each of these nor do i know which is the best option
right now i'm leaning towards these components simply because they seem to be the best to my uneducated opinion however they are also very expensive.
i notice a lot of people select ddr2 but all i know is 3 is higher than 2 so it must be better. I want the cheapest option keeping in mind I want high performace and something that will last a few years.