I have a couple questions for the mac crowd! Yes, I have done searches for this topic. I would like to install Linux on my iMac G5 and my iBook G4. I hear it is free? But, I also read that there are different versions! It seems very confusing. If I wanted to install Linux on my mac's, what would I have to do? Would I have to buy anything? I just want Linux to test it out and play around with it. Any advice for my questions will be greatly appreciated!