So one update - I did manage to find an OS X 10.4 install disk, but it appears that the drive in the G4 is bad or missing (no drive found to boot from or in Terminal). I'm going to take it apart probably this week sometime and see if there's a drive in it, or if its bad. I do have another 2 of these at the office, they are in just bad shape physically, so I may be able to salvage parts from one of those.Please keep us posted!