that psu = beast!They're in the 550W range. And I'm sure they're enough, because they have plenty of amps to power any high end system. The power is not in the wattage.
But here's another suggestion:
Newegg.com - PC Power & Cooling Silencer 610 EPS12V EPS12V 610W Continuous @ 40Â°C Power Supply 100 - 240 V UL, cUL, CE, CB, TUV - Retail
also i think he's canadian since his links are tigerdirect
and get the 500gb 7200.11 barracuda its faster