My Powerbook, see sig, is unbearably slow. i've repaired permissions, used OnyX for maintenance but its still terrible. Can take over 10 seconds to open applications when there's nothing else running. If I were to do a rebuild what should I back up first? Currently I backup the Desktop, Movies, Documents, Pictures and Music folders of each user (me and the mrs). What about data applications? Can I backup all my themes in Rapid Weaver? Is it possible to backup all email in Apple Mail? Can I save all my Firefox extensions? Do I need a proper backup program or is copying to an external drive ok? Sorry for so many Q's.