A lot have been said about Sapphire's coolers, but let me tell they are actually very good,
if you are not after achieving very low temps like MSI's TF coolers or HIS IceQ coolers. Build quality is good and they OC really well. I reached 900/1325 on my 6950, with a little voltage bump and it was stable in games and benchmark. On load, temps rise only 1-2C over stock, whereas idle temps remain same. Of course, its colder now, but temps in summer with 850/1300 (stock volts) was more or less similar.
Plus Sapphire's bundle is pretty good, if anybody needs them, and you get a chance to enroll for Sapphire Select Club on select cards for additional goodies.