I replaced two Antec Tri-Cool fans in my P182 case today with 2 120mm Nexus fans running at 7v. The quietness is outstanding! I guess I'll hear the real results when I leave it on tonight as I sleep. Good as it is, the lack of a reassuring hum will take some getting used to.

I wonder what it'll sound like when my Thermalright HR-01 PLUS arrives...probably not much, since I'm pretty sure C2D fans are fairly quiet at 800rpm anyway.