User Built CPU: Pentium Core 2 Duo 2.53Ghz Mobo: Asus P5N-E SLI Mem: 2Gigs 800Mhz Video: Galaxy GeForce 9600 GT Video Card - 1GB DDR3, PCI Express 2.0, SLI Ready, DVI, HDTV, HDMI HDD: 300Gig Western Digital Velocoraptor OS: Windows Vista Ultimate This pretty much the system that I have (other than a couple of DVD RW players) and I really need to upgrade my power supply as I keep getting blue screens and was told this is probably the reason why. The case I bought came with a power supply AND it had a PCI-E 6-pin connector so why would I need anything bigger right? Wrong! I didn't read the specs on the new video card and it requires at least 400W power supply and a combined 26A at 12V which I don't have (mine is a 330W w/12V@12A. Any suggestions to exactly which power supply I should get would be extremely helpful as I am power supply stupid and there are so many to chose from! I have bought all my computer stuff through compusa.com and have a gift certificate that will cover some of the cost so I would appreciate any suggestions come from them if possible. Thanks So Much!