I need some help picking a power supply for a new build. I have a I7 920 processor, Asus P6T Deluxe motherboard, 6 Gb OCZ ram with a 285 GTX 2 gig Video card. I would like to water cool this since I want to overclock the processor to at least 4.2 gig. I was planning to use a 1000w Corsair power supply. If I watercool the video card will a 1000w power supply be big enough? Any suggestions would be appreciated.