Hi, I'm planning on selling my old mac and buy a new mac. However, what is the best way to restore my old mac to "out of box status"? I'm sure the next owner will not want my personal preferences still in the computer, and I don't want unwanted persons have access to my files, so I want a way to securely erase all my files (and my traces) from my old mac. What is the best way to do this? Also, I think I will get my new mac before I sell my old one. So there will be a period that I have two macs on my hands. What is the most convenient way to copy all the files to my brand new mac? Worst comes to the worst I'll just drag all my files one by one to my new mac, but is there a way this can be done automatically, especially if I already have time machine backup? i.e. I'm specifically interested in if I could just take my time machine external harddrive, and hook it up to my new mac, and wham! my new mac looks like my old mac! (eh..with all the new capabilities of the new mac, that is...) Thanks!