We measured the power consumption of our entire test system at the wall while loading the CPU using Prime95's Small FFTs setting and GPU using FurMark. We also measured the power consumption with the system resting at the Windows 7 desktop. As this is a gaming system, we also decided to measure the power consumption while playing Battlefield 3.
Idle power consumption will please environmentally-friendly users such as myself. With an increased load comes amplified power draw. We did register a peak rating of 400W being drawn from the wall, but that was only for a split-second.
On the bright side, Xigmatek's 80 Plus Bronze Centauro 700W PSU will be operating at peak efficiency when tasked with the gaming and load power draws.