Okay I have had my head down just working and before I knew it my system is totally old! I have apparently missed all kinds of updates. My current system is 10.2.8 (I have a G5 Duel 2 GHz PowerPC with 512 MB). What is the logical string of updates do I need to get this computer updated to where I can use most of the software and hardware for Macs? I have having to deal with some other issues and purchased an external hard drive to work on fixing the problems. But after hours of fussing I realized that the external hard drive needs at least a system of 10.4! Ugh. I am pretty darn frustrated! Where oh where is the place to get updates and which updates exactly do I need?