Swiftech H20-120 REV. 3 Liquid Kit
 

One of the main reasons we have water coolers is for the performance and
quietness. In this the Swiftech system delivers, at least compared the the
stock Intel cooler. With the included fan the H20-120 is fairly quiet, but
when we put a Vantec Stealth fan in it basically didn't register on our
sound meter. Cooling performance was very good especially when
overclocked, with the system being from 5-10°C cooler under load than the
Intel cooler.

http://www.viperlair.com/reviews/coo...tech/h20120r3/

Considering my 2.8E @3.57 Ghz 1.535 Volt (255 FSB thanks to the OCZ Powerstream) 100% air cooling, load temp <53C @24C room temp is not bad at all.

As for sound; 48 dBA 18" from front using Calibrated Digital sound meter.