So the big cat is coming soon.... Are you planning on upgrading or doing a clean install? Which is best? If I do a clean install what's the best way to back up iTunes, iPhoto, iCal, Mail so I can transfer the settings, events, playcounts, appointments, etc? Am happy to upgrade but think a clean install may be a good opportunity to clean the slate and get rid of some of the crap. Or is all the extra back-up, archeiving not worth the effort? What do you think?