well you want a PSU that has 32A on the +12V. whats your budget?
here's a good one thats not too expensive http://www.newegg.com/Product/Product.asp?Item=N82E16817189004
you can also look in Computer Specs 101 for some good PSU's or even the PSU101
I'm in a position right now that doesn't let me get a new PSU, I have a brebuilt with a custom fit case and PSU that's why I ask which is the best card I can get.