A few months ago I got an iMac G5 w/ box and everything for $20 at a yardsale. It had a Dead PSU. I spent a few hours last night and until about 1:00 this afternoon trying to get it to work with a hacked atx. Finally i had sucess!!! it is now working fine w/ a fresh instal of leopard, and i will be updating the software for a little while. i have a feeling that i will see a major diffrence between this 2ghz iMac and my 1.25ghz emac and dual 1.25ghz MDD.