Sooo current build is Phenom II x3 740 and a 5770. I'm using this PSU, Newegg.com - SeaSonic S12II 520 Bronze 520W ATX12V V2.3 / EPS 12V V2.91 80 PLUS BRONZE Certified Active PFC Power Supply. I was thinking of grabbing a 2nd 5770 for Crossfire in the coming weeks, think this PSU will be able to handle it?