I've just purchased a custom PC (I know I know - but it's a kick ass gaming platform) that was made specifically to be quiet - 20db @ 1M - it's as quiet as my 15" AuBook! - no kidding. Ah, back to my point... My Dual 1-Ghz G4 power supply is making a ton of noise. I never noticed it before because my previous gaming PC sounded like a F18 taking off on the flight deck of the USS Enterprise - I thought the Mac was quiet until just recently. Question: Has anyone replaced their power supply on their G4 recently (the warranty/recall that Apple has for some reason doesn't apply to me - so I'll have to buy it). Is the noise signifiantly reduced? Believe me, you don't realize how NICE it is to have quiet when you are using your computer - music sounds so much better, games are more entertaining. Thx. - for those of you wondering. The PC is made custom by Marauder PC in Virginia (marauderpc.com) - 3.2Ghz, 1G RAM, 2 SATA HD's in RAID 0 240G, Audigy 2, Geforce 5900, etc... When I booted it up for the first time, I thought I broke something because I couldn't hear it - I thought, damn, is this thing on?