I finally get to open my first iMac in a few days and the excitement is killing me. So I decided to sign up for one of the workshops at the local Apple store. The girl told the group that Time Machine would make a perfect mirrored image of the hard drive in case of catastrophic failure. I asked her if this image was a boot-able clone and she said yes. From reading posts here I gathered that it didn't do this, but you needed SuperDuper or Carbon Copy. Was she wrong?