if you dont wanna get that powersupply, theres a list of good ones here
http://www.dfi-street.com/forum/showthread.php?t=10854
the recommended ones are basically ones that will give pleanty of power for a high end system

i dont
totally agree with it tho due to it saying my PSU isnt recommended for Dual Core or SLi systems, but it works fine and im O/C'd by 800mhz ;p
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Intel Core 2 Quad Q6600 @ 3.4Ghz (425x8), Leadtek GTX 280 1Gb, 1.8Tb HDs, 2Gb Corsair DDR2-800 @ DDR2-1020 5-5-5-18 Dual Channel
Dont PM me for help, use the forums, thats what its for!