Thanks for the response! For me a silent system is of extreme importance. Currently I'm using and older Coolermaster 550W supply- I ripped out their fan and replaced it by soldering in a Nexus 120mm fan. It's very quiet but also quite old (Recently I'm getting a 2 sec delay from the switching on of the computer until the PS works- not a good long term outlook!).
Currently I have a big-assed case with 3 case fans- 2 intake, 1 exhaust (all 80mm Panasonic fans- made in Japan and NOT China as there is a Big, Big, Big difference), the CoolerMaster Modded PS, an EVO 212 heatsink with a Nexus 120mm fan, a secondary Hard Drive sitting decoupled from the case and instead on a CoolPak on the case bottom), and as I'm not a gamer I use a fan-less ATI graphics card.
Unless I concentrate real hard at 3AM on a Snowy night I can't hear anything from the Computer except a very slight hum.