To my understanding you need 2 PCI-E connector for one of these cards? So that would mean you need a Quad-SLI, 4 PCI-E rails, PSU to have 8800GTX SLI up and running? I'm just confused because I see people running 8800GTX in a SLI setup using the PCP 750, the orange PSU, and it only has 2 PCI-E.