Im building a gaming pc and need to know a few things.?

Hmmm, small world. I just built two of almost this exact computer earlier today, one for me and one for my wife. Same Mobo, Processor, and RAM (but only 4GB, more isn't really necessary/useful yet.) The only real difference is I went for the WD Caviar 1.5TB, because it runs on SATA 6.0, which doubles the transfer rate over the SATA 3.0. The motherboard has built in SATA 6.0 ports (they're the white ones). Word of advice, for your single GPU to actually run at PCI 16x, you need to plug it into PCI port #2 (the blue one) and use the enclosed (w/Mobo) Video Graphic Card to fill PCI 16x slot # 1. Not sure why they designed it that way... I'm powering with a Corsair 750w, the 600 should be enough, but maybe not if you ever decide to SLI a 2nd graphics card into the Mobo (of course if you did, both cards would be limited to PCI-8x, once again, what's with this Mobo and its GPU configurations!! Running a higher capacity PSU at a lower constant total percentage of maximum load is cheaper in the long run (it converts power more efficiently), that's the main reason I went with the 750. Oh, and btw, these two computers run fast as all hell... very decent for the bargain price. Just make sure you get an aftermarket CPU fan if you're going to overclock it. (I went with the Cooler Master Hyper 212+)