Still deciding which backup method to start with. With my MBP I preferred cloning with SuperDuper. This way if I ever had a drive failure I could just put the clone in and be back up and running in 15 min. The iMac isn't the same animal, as you can't just switch the drive yourself. It seems like a clone would be less useful on an iMac, or is it? Assuming your drive failed, and you had a clone. Then had Apple replace your drive with a new one, could you boot from the clone and then in turn clone your new drive from that clone? If that's the case, that would sit well with me.