The first step to getting a good power supply is knowing you need a good one... congratulations on passing step 1.
Maximum PC had some interesting points about what to look for in a power supply. Obviously they highly recomended PC power & cooling but Enermax, Antec, Sparkle, and so on I'm sure are perfectly fine. One interesting point though was that you will notice better quality power supplies almost always wiegh more than cheap ones... which is pretty logical when you think about what components a P.S. consists of. The only bad experience I've heard of with power supplies was with the generic ones they sell at the Milwaukee PC's here in wisconsin... I know 5 people that have had one burn out on them in the past 24 months, not a single one lasted more than a year and a half.
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