hi im currently running a intel core i5 750 @3.4ghz and 1600mhz ddr3 dual channel ram, 3 hdd's in raid 1 and 2 x EVGA 465GTX 1gb in SLI, Im currently running with a 750 watt 62amp single 12v rail, now would I see a performance increase with a new psu?, according to nvidia.com with 2 x 400 series cards in sli i would need 1000-1200 watt psu, im just trying to make sure thats what i need and what brand of psu would you recommend, i currently have $200 i can spend on a psu, thanks for your time, Jim