I have an iMac that is about 2 and 1/2 years old. It's been acting sorta weird for a while now. Nothing major, just some strange little quirky problems that didn't used to be there. Because of that, and because I would just like to start fresh, I've been considering doing an erase and install when I install Snow Leopard. The thing is, I've never done that on a Mac before, and I want to make sure I don't screw it up, for obvious reasons. I feel pretty confident I can get my music, photos, and other files back without a problem, but I am really concerned about getting all my applications back. Is it as simple as copying the contents of the application folder over to the clean drive? Or do I have to track down registration information for all the programs I've purchased? And will programs I've purchased allow me to reinstall them, even if I have the registration information? Also, what's the best way to pull back the information. I have 1 external hard-drive and a stack of blank DVDs that I would like to employ, I'm just not sure the best way to do it. Should I just use my Time Machine backup to restore music, photos, etc.? Or should I use Carbon Copy Cloner to clone my drive and pull things back manually from the copy? I would really appreciate any guidance you guys can provide. I've googled and googled but most things I find simply tell you how to erase and install. I'm not worried about that part; I'm worried about recovering everything afterward!