I have 2 iMacs that I just got recently... one I currently have Puma on (can't seem to get Panther working... ) and the other is really crappy. I used to have a crappy old PC a few years ago that could barely run XP soooo I put Ubuntu on it, and it ran smoothly... my crappy iMac has these specs. 333MHz 64mb of ram 6GB HDD OS 9.1 (or 9.2... don't really know, except for the fact that it's still classic) Will it run linux? I'm currently downloading Ubuntu Netbook... will it work for my iMac? PS: If I end up hating it will I be able to go back (with proper install CDs) and install Mac OS again?