Hello All, i will be in the market for the new Nvidia 9800 GX2 videocard as soon as they launches. The question is how many watts to i need to power two GX2 in Quad core SLI? I am trying to purchase a power supply now while i have the money. i know that PC Cool has a 1KW for SLI and Thermaltake has the 1200W. Currently i am using the Cooler Master 850w 80plus, will that be enough and i can hold off buying another?