Just goes to show that you dont always need a Huge PSU :
The rest is here :http://www.theinquirer.net/default.aspx?article=36066
UNTIL AMD'S QuadFather is out in numbers (and, for many apps, even after that), Intel Kentsfield or officially, Core 2 Extreme QX6700, rules the roost in the PC desktop space. Combine it with the performance driven Nvidia Nforce 680i based mainboard and dual 8800GTX cards running in SLI, say 2GB of Corsair, OCZ or Geil low-latency high bandwidth memory at DDR2 1066 levels, add the usual hard disks, DVD and, well, cool the CPU with some watery stuff so that it doesn't get really hot when fragging enemy soldiers or compressing those HD DVDs and you have the ultimate Xmas 2006 PC present.
As everyone says, we should fit in at least a 700W, preferably 800W, power supply with a zillion cables, SLI, SATA connectors, heat pipes and so on, to drive this, or else, don't bother even turning it on. Well, it happened that I didn't have any of these PS monsters handy, and frankly I was tempted to prove otherwise. I mean, it can't be that a PC needs more power than an air conditioner or two fridges combined! Something's just going wrong, despite the voltages dropping, semiconducter processes shrinking and more efficient designs - a kilowatt desktop PC simply sounds too scary. Got to prove 'em wrong...