My current HSF sounds like a car when going at full pelt and makes my room vibrate like crazy... and it doesn't really seem to have that much effect (about 10-15C.)
It's possibly because one of the blades got broken off when my brother forgot to tie up my PSU wires out of the way, causing them to go into the HSF and snap off a blade.
Anyhow, I'm running a 5000+ BE on a AX78 and need a HSF. Preferably one that fits in without too much stress. I last had a NorthQ "UFO Low noise Aluminum CPU Cooler with 92mm Fan" which struggled to fit into the case (in the end, I had to move my RAM to the alternative slots to allow me to get it in without damaging it.)
I'm looking for something nice on Scan (because I'm buying some RAM/graphics card off them also) which isn't going to cost a fortune and will hopefully allow me to not have a full room vibrator and more sound than my puny little sound system can pump out.