If you are anxiously awaiting the April arrival of Fermi you had better double check your PSU.  Based on the findings of many sites, the GTX 480 and 470 are both very power hungry cards and the spikes on a full load may be more than your PSU can take.  If you are going with a single card then 750W is probably the lowest you want to go and you are going to want a good 750W PSU.  One choice is the Antec Truepower New 750W PSU, which is 80+ Bronze Certified, sports some modular cabling and a silent 120mm fan.  Its four 12V lines are all 25 amp maximum and Think Computers testing showed the power that they generate to be quite stable.  Follow the link for the full review.

“Antec’s Truepower line of power supplies has been around for several years now. ThinkComputers really liked theTruepower Quattro 1000W and the 850W. The former was one of the first recipients of my Editor’s Choice Award. The Truepower New 750W was released last year, but we’ve got a fresh review of this 80PLUS Bronze certified unit with a 120mm PWM fan and partial modularity.”

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