Hi every one, I am new to the forum. A good friend of mine has given me their iMac G5 1.8GHz with 512mb ram. Its on Mac OSX 10.3.9 (7W98) Kernal Version Darwin 7.9.0 This is my first Mac and I am looking to upgrade it as it seems a bit slow and lots of new SW such as iTunes latest will not work on my OS. I have ordered 2Gb of Ram to speed things up hopefully. The next thing I want to do is update the OSX. What is the latest version I can go up to? I see the latest OSX 10.6 now leopard requires and Intel processor and I take it that my iMac is not an Intel CPU? Also out of interest is there a way to totally reset the OSX i have at the moment? Thanks for your help .