I'd like to perform a clean install of Leopard on my Mac and 'start over' again. (due to some junk I got installed, error messages, slower overall system etc ... it's easier & quicker to do a clean install than to find out what the problems are and solve them) How do I do this? Insert the OS X installation disc and boot from the disc? (start up holding C right?) ... I'm gonna put some important documents / apps on an external drive. Any pointers on how to succesfully move applications or just about the process in general?