Is it possible to upgrade the hard drive in my Macbook? I want to have 1TB of space for saving movies, music, etc. directly on my laptop; I do not want anything external. I think it would be easier to have all the media content right on my laptop via the iTunes vs. having it someone else and having to bring it in to watch something. If I did get the extra internal hard drive, where is a good place to take it to get it installed professionally? What kind of set-ups do ya'll have if you have a huge amount of content that you want stored? Thanks.