I just purchased a new rMBP and am excited for it to arrive later this week. I also just purchased Time Machine. I have already organized the files on my current MBP to transfer over to my new machine. I don't want to do a full backup of my current machine and transfer everything over to the new MBP - just the files I have put into a separate folder. What's the best way to do this transition? Should I wait to setup Time Machine until I get my new MBP in the mail? Or does that really matter? If not, can I setup Time Machine now without backing up my current MBP and essentially use it as only a router at the moment? Thanks for the help!