Being the proud father of a 3 1/2 year old daughter and a 1 1/2 year old son I really appreciate peace and quiet. I built a AMD 64 system useing an Antec SLK3700AMB case that had a very loud PSU fan and after a few weeks of listening to it humm I decided to pick up a Seasonic Super Silent 400w power supply at Frys ( $99.00 with a $15.00 MIR ). What a difference. I am not sure if I got a bad Antec or not but the Seasonic blows it away in the noise department! I am very pleased so far.