Twin Frozr gets my vote. It is the best of everything: good cooler, quiet, voltage unlocked, appropriate size (no super long PCB), I think it is a reasonable price, and quality parts.
Definitely the MSI 7950, as Berserker said (didn't I start this whole MSI craze?). Quality parts, solid cooler, and fantastic price, for the 7950, at least. Other MSI products can be a different story in terms of price, but they hit the 7950 market right on the nose.