Hello all, as many of you would know, the MDD G4 Power Macs had a reputation for being rather noisy - so much so that Apple initiated (after pressure from many disgruntled users) a program to replace the power supply and CPU fan in offending machines. I have a G4 MDD 1.25 GHz DP FW400, and I tried to use it for a few days - I work as a sole trader in a fairly quiet room in the house - I found the noise to be so intolerable that I went back to my G4 933 MHz, which is what I’m using now. My MDD has the original PS and fan. I read on the Internet that most people reported the replacement fan and PS made a real difference in noise levels. So, if anyone out there has one of these revised power supplies or both fan and power supply, please let me know. I am keen to pick one up. I believe the replacement PS was marked “REV B”, as opposed to the “REV A” of the original. Thanks Paul