Ok, im planning on upgrading my PSU and I have no clue which one i should get... (BTW, im gonna try to OC my cpu to at least 2.9GHz and my GPU to 600/650. Also I plan on going crossfire with another X850XT) Here are the ones im thinking about: OCZ Modstream 520w OCZ Powerstream 520w OCZ Powerstream 600w (Is this worst than the 520w? its a dual rail PSU... are there any single rail versions of the 600w?) PC P&C Turbo-Cool 510 ASL PC P&C Turbo-Cool 850 SSI The PC P&C Turbo-Cool 850 SSI obviously is the best PSU in the list, but I sure don't wanna save up $512.71CAD for a PSU... I was thinking about getting the OCZ modstream cause I love the looks and the decrease in useless wires; but it seems a little too weak. Oh and here are my sys specs: PC-A9RD480Adv(PURE Crossfire advantage) mobo AMD Athlon 3700+ 2.63GHz (Planning to oc to 2.9 or higher with new PSU) Radeon X850 Crossfire Edition (588/610; planning to peltier cool and oc even higher) 1024MB (512X2) Kingston Value RAM 3 DVD drives 9 Fans -Planning on switching to Water and Peltier Cooling -Planning on adding an X850XT And go crossfire -Planning on switching RAM to OCZ 2GB PC4000 Gold Gamer eXtreme XTC Edition -Depending on how AM2 goes, I might consider getting the new AM2 socket later. Thats about it... Thanks for reading this! Sapphire PC-A9RD480Adv Sapphire Radeon X850CF AMD Athlon 3700+ 2.63GHz 1024MB512x2DDR400 RAM 350W Acetech PSU 16A;12v 300w SPI PSU 18A;12v

PC P&C Turbo-Cool 510 ASL

The OCZ It has adjustable voltage rails.... And it was voted the best since slice bread !!! Only about 6 moths or so ago..... IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool

I've got the OCZ Powerstream 600 in my main rig. I highly recommend it. It's powering my insanely overclocked system without breaking a sweat.