getting new mbp and will need to copy files to the new computer. I have a lot of programs, etc, that I don't have the dmg files and would have to find from the web, plus big programs like CS3,4,5. I heard that a clean instal is best, but is it practical. Plus setting up all your preferences, mail, etc. What is the best way to copy from one MBP to another? I do have a backup hd that I use with carbon copy.