Just on the loudness: I have a 45W (all without display) idle system, 75W max, and besides the PSU and an ultraquiet case fan it is completely passively cooled. So nothing here with loudness.
Originally Posted by Ant P.
I don't know about the large Phenoms, most of them will probably require active cooling but e.g. the 4850e can be passively cooled. The newer onboard HD3300 can become quite hot but then the powersaving is not yet implemented in the free drivers (but is to come soon). Most things here work, it is mainly the 3d and powersave functions I'm waiting for. All other parts seem to work, but then some things depend on manufracturer's implementation (sensor & IO chips like ITE, Fintek), Network chips, sound chips and so on, so you'll still have to look at the very motherboard you're going to buy.
Stop TCPA, stupid software patents and corrupt politicians!