asetek WaterChill Extreme Watercooling Kit
 

"Performance is great; be it silence or low temperatures you are after,
the asetek WaterChill Extreme kit will provide you with both options. Even
when the system is running at it's quietest, the performance is very good,
and at full speed (loud, but not overly so; I've heard louder air cooling
solutions that didn't perform half as well) the temperatures are simply
the lowest I've seen, and the lowest I'm likely to see short of chilling
the water."

http://www.viperlair.com/reviews/coo...id/asetek/wcx/