I'm trying to make a gaming PC, although I need help with it.?

I put together computers for guys at my college all the time and I can tell you right now that that is a beast of a computer. What kind of gaming are you planning on doing? The hacking kind? Yes it's all compatible but I would say get a 5770 graphics card. Especially since the motherboard video specs are par and everything else on the computer is juiced. You should possibly invest in larger fans or a cooling unit.