Ninjalane has posted their review of the super cool and extremely large cooler from Noctua, the NH-D14. A quote from the article:

Cooling a processor can be a real challenge when you are looking for good performance with a minimum of noise. Typically you'll have to sacrifice something along the way. High performance normally means a higher noise threshold, while quiet heatsinks usually don't cool very well.

>> Noctua NH-D14 Heatsink Review