What socket do you need this cooler for?
For quiet, look for a cooler with a large(120mm) slow turning(<1000rpm) fan. The large tower type coolers seem to be the most efficient.
Here is a good review of some popular 1366 coolers:http://www.frozencpu.com/resource/r24/Best_CPU_Cooler_Performance_LGA1366_-_Q1_2009.html?id=JqPuITTJ
Look to the Xigmatek dark night series for a good value.