Ouch, from what I can see that set up will smack 600w on full load, and the amperage on that Thermaltake isn't very good, only 56A. You would be using 85% of the PSUs power on peak load, thats a bit much with absolutely no overclocking. The normal "high" load of the PSU will be about 550w which still is 78%, and is not in the comfortable area of 30%-70% that most PSUs run best at. I must say that you most likely can get away with that PSU, but with no room for upgrade or overclock. You will be taxing that PSU, and it is not the actual wattage that worries me it is the amperage and quality. If I were you I would either upgrade to a PC P&C 750w which is comfortable to around 90% continuous load and your system wont even break that at peak. Also it has a single rail at 60A, which is much more efficient and has all 4 6 pin PCIe connectors which draws less than the converter would. If you want to overclock to the max then get the Enermax Galaxy S, either the 850w or 1000w, both will be more than enough for your system, and the Galaxy S is the absolute best PSU on the market in the 800-1000w range, while the PC P&C Silencer series is the best from 450-750w. Hope this helps.