I'm thinking of making a move to my first Apple notebook with one of the new Macbook Pros from my six-year old iMac. The iMac which I bought in 2010 shipped with a 1TB hard drive. A new Macbook Pro I purchase today only ships with a 256GB hard drive. For the first time in my 15 years of Apple ownership my new computer is going to ship with a smaller hard drive than my previous one, meaning that my usual system transfer process will be the first where I can't tell it to just pull in everything from my old computer as is. I've got a iTunes and iPhoto libraries that are over a decade old, and I'd hate to have to sit down and try to decide what I want to dump and what I want to keep, so that's out. I guess I should load up something like Disk Inventory X and see what the big offenders are in regards to what's using up storage on my iMac before I make the move?