There is someone selling an old 15" iMac G4 for $75 on craigslist. She said it just wouldn't turn on one day and that maybe I could get it running again. I am up for a challenge and just to have something to do. I just have a few questions. 1. Is it worth it? After looking at eBay, it seems that the parts themselves are worth much more than this. 2. If it is the power supply that is bad, is there a way to mod a standard PSU to just test the rest of the components? Any other advice for taking on a project like this? I would like to get it running again, but if not, I will part it out and help other people keep their iMacs running strong.