Just sold it for $1200 and hopefully, i can wait out until the new rMBP 13 ships before i buy another Air. Anyways, i have to ship it tomorrow so how should i back up my computer so when i plug in the hard drive, i push buttons and it returns to the state that the Air i'm typing on is now. Will Time Machine do it fine? I'm aware of Super Duper but it wants me to reformat the drive my time machine back up is on and i don't have another drive.