I just got my iMac 24" today with a drop in Leopard DVD. Should I go with the clean install (erase tiger and install leopard)? It seems like this is the safest way. My main question is this. All of the apps that come with the computer (iLife, Office free trail, etc.) will be deleted when I delete Tiger right? Is it guaranteed that I can get every single thing back that I lost and run it on Leopard? Thanks a lot!