Re: The Final Build
for PSUs, look for Antec, OCZ, Corsair, PC Power and Cooling, Silverstone, FSP.
And theres a couple more, but i dont remember.
EDIT - My system only needed 300W BTW.
Google extreme PSU Calculator, and select the parts you want, and it will tell you how many Watts you need.
Desktop -Cooler Master NV690/AMD Phenom II X4 965 BE/MSI 880G-E45 Motherboard/2 x 2GB DDR3 G.Skill Ripjaws X/Sapphire HD 5870 1GB GDDR5/CORSAIR CMPSU-550VX/Seagate 7200.12 500GB (OS), Samsung F3 1TB (Storage)/Sony DVD Burner/Windows 7 Professional 64-bit