I recall a while back, Apple offering replacement power supplies in an effort to reduce the noise problem in G4's. I would assume that if you were to buy a new G4 from Apple's online store today, it would come with this improved power supply/fan. My question is (perhaps someone that owns one can answer this), ever with the new power supply, are the units still noticably loud? I'm considering purchasing one, but do not want to get it if it's really noisy.