We all know the SI128 cpu cooler from Thermalright, put on a 3000rpm fan and it cools like a charm but sounds like a hairblower. There are ways of making a high-end cooler silent and yet perform realy well. One of my friends (which came to visit me and raid my fridge) is shouting, why not remove the fan and then it quiet , well he is a noob so I wont take notice of him. The Thermalright includes fanbrackets which can be used to install a 120mm fan, but they suck. I am going to use rubbers… ( I should have done this 9 months ago ;-).