In my system, I've got one 120MM Sunon, 2 92's, and one 80. My HSF is a Hedgehog with black label fan. And YES it is a loud fan, but do to the nature of copper, on my baybus I just made a 7v/12v switch for the HSF. At 7v its about the same temp as full rpm but a managable decibel level. At full RPM, heat dissipates faster. I keep all the fans, hooked up to rheostats, at about 50% during idle, but hen its time for games, the solution: BIG noise-reducing headphones, and crank up the volume. Now your comfortably obliterant of the outside world, albiet neighbors/family/etc...being a bit agitated
Once all thats on, all there is is too crank up the fans to full rpm, hit the cpu fans switch, voila! There really was no point to this post, but oh well 