I'm about to get a new iMac and I suspect it will come with a drop-in Leopard DVD rather than being pre-installed. I currently have a Powerbook running Tiger which has two users; an admin that is only used for installing stuff and my local standard account which I use day to day. 1. Can I install Leopard without having to go through all the initial set-up on the Mac setting up user accounts etc? 2. If not, am I better to migrate all my data over and then do an upgrade to Leopard? Or do the upgrade to Leopard and then migrate all my data across? 3. If I have to set up the iMac first and then migrate my stuff over, what's the best way of doing it to keep one admin and one standard account? Can I set up a new Admin user on the iMac (with my usual admin name) and then just migrate my standard account over? Do I set up the iMac with a 'temporary' admin account, port the old two accounts over and then delete the 'temporary' one? 4. If I have the same two user names on the two Macs, will it cause problems if I share stuff between them - other than potentially confusing me?