Hey all. Got a new internal HD for my MacBook for Christmas. Can't wait to pop in 250gb and get rid of the ol' 80. The problem: I need to transfer all of my data from one to the other. I have an external HD, a 120GB firewire model. Is it possible for me to run Time Machine, backup everything on to my external, switch out the internal drives, boot off of the external, and then copy the external to the 250gb? ...or what would you suggest? Much appreciated.