Hi, just got a new MBP and thinking to sell my 2 year old iMac. I would like to backup all my files in the old iMac and then format the HDD and reinstall Leopard on it. I would like to use the backup dmg as a bootable image for future use, if possible. I can think of three ways: 1. Start up my iMac, connect my USB external HDD (I don't have a firewire one), run Disk Utility, under Restore, copy iMac's HDD to the external one; 2. Start up my iMac with MBP's Leopard DVD, run Disk Utility from top menu. under Restore, copy iMac's HDD to to the external one; 3. Connect iMac to MBP, start up my iMac into Target Disk Mode. Run Disk Utility on MBP, under Restore, copy iMac's HDD to to the external one. 1 is the simplest way, i think. Option 2 could be safer. Option 3 is the most complicated one, and I want a bootable backup. Which one should I use?? Thank you.