I've run SlackWare on PC and Ubuntu on PC and Apple hardware. I really love Ubuntu, strong and powerful, clean interface and easy to use. I will be taking it off my powerbook however as I've been having really intermitent wireless. I got my AE card working, which would be great, if it stayed working after restarts and stuff. And now I can't get it to work again. grr. I've been thinking about trying slackintosh, but I may hold off. For right now I think my laptop will go back to OS X 10.4.8 As soon as I get a second hd for my powermac, it will permanently have Ubuntu on one drive.