You should have gotten the HX series from corsair thats their best quality. IMO as an old hand in building computers psu is the most important part of the computer a crappy psu will burn out and take other parts with it corsairs isn't crappy but the tx series isn't their best for the oc seine. I hope your sli because that set up 520HX from corsair would have been more then enough.

Lol raid my motto is 1 is always better then two which explains my GTX285 and raptor hdd. raid is silly esp at current hdd's sizes. I haven't used SSD yet because i'm afraid ill burn though a mlc in like a week then cry. Hope the rest of your build goes well.