NEVER an Antec! I had (2) older rigs be 1/2 destroyed with Antec's PSUs {fried to GPUs ATI & nVidia} I'd have to be crazy to recommend any of their PSUs. And never a (3) rail PSU.
Single Rail + Japanese Capacitors - Period. I don't care about Tom's Reviews full of omission's, bias, and paid vender$. I've built 70-80 rigs with Corsairs, if they fail they won't take out your rig's components - BTW no failures yet for years.
Best PSU's: Corsair, {Highend} Enermax, {Highend} Mushkin, some -> SilverStone & OCZ.
My selection bias: Quality, Fault Tolerance, Efficiency, Capacity, Components, and then Price. Most are made in China or Taiwan.
Specs:
1288 5 {Egg} 650TX -> Single Rail + Japanese Capacitors -
http://www.corsair.com/products/tx/default.aspx
518 5 {Egg} EA650 -> 4 Rails + Cheap Capacitors - http://www.antec.com/Believe_it/product.php?id=NjY=