Hi, I am new to the world of mac, so new in fact that I have not even used it yet. A buddy of mine gave me a G4 AGP (i think) but it had no disk drive. I have installed an 80gb drive but I still have no OS, how do I get this ? I would prefer tiger but I heard that there are different disks for different machines. I am desperate to try out os x but have so far struggled. Any help would be much appreciated. Si.