the problem i have is if i look at a psu less than the 750w they dont have the connectors for the pcie graphics card ( 6 pin i think )
Actually, you'd be surprised, the Corsiar CX500 PSU (500 watt unit), for ex., has 2 PCI-E power connectors, as opposed to the 750w unit that comes with the case. That PSU has only one
PCI-E connector, and it's rated at 250w more power than the Corsair unit. But, like I said, I really
doubt that the latter PSU is 750w, a real 750w should have more than one PCI-E connector.