Re: Power Supply Question
Overkill for an single card, even if it is a dual GPU, the 55nm GT200s are actually pretty frugal.
The GTX295's TDP is 75W (PCI-E) + 75W (6 pin) + 150W (8 pin) = 300W, it won't actually draw anyway near that much, I'd say around 220W-230W.
Buying a higher wattage PSU than is required doesn't only mean you're spending more money than you need to. A PSU's efficiency is at it's lowest when the system is drawing much less that it's rated output, which means it's going to be using more power and producing more heat that a, for example, 600W PSU.
Something 600W-650W is will do fine. Look into the Corsair HX620 or it's Seasonic equivalent.
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