I work overseas, and will be selling my current MBPro to a colleague before my departure back. I have a new MBPro sitting at my house waiting for my return, and I want to re-install all of my old data on my NEW computer- without having the old computer on hand. Can I do this by backing up all the data on an external HD, or is there more involved? For someone who is not very Mac Savvy at this point, I could use some help in "baby stepping" me through the process. I frequently run Time Machine to an external HD, but want to make sure of a few things prior to the handover: How can I keep a copy of ALL my Email (both sent and received messages)? This is SUPER important! How do I transfer my photos and music? I think this is more straightforward, but thought I would check as well. How can I guarantee all of my files, and data can be securely wiped or trashed prior to the handover? Thanks in advance to any and all who can assist!!