name='Allsorts' said:I used a Zalman 9700 LED in my HTPC system. It is low noise (I keep the rpm low) and gives low temps on my 4200+ (idle 30 °C, load 37 °C) but YMMV. I was really impressed with the results, must have something to do with the heatpipes.
The only downside to this cooler (and the ones mentioned above) is their size. Before you buy make sure there is enough room around the CPU so the cooler won't hit off any components or parts of the case.