Quick question for you guys, how much power would I be needing with my desktop as it appears in my info plus another 460? I've been looking around and getting mixed answers some say sli460s with a core 2 quad will need 600 some say more like 700. The problem is that my psu now is only 600 so I'm guessing if I want to run sli I'm going to have to upgrade that. Another thing to consider is that my video card and processor are both overclocked. Thanks in advance!