Whats up macrumors. thanks for all your help in advance before I say anything! so what's going on with me is that I have a 15" macbook pro (matte, 120gb, 2gram, 2.16ghz) I looked it up on mac2sell.com and it's worth $970 (apx I guess) i'm looking to trade it for a 13" macbook black (2.2ghz, 4gram, 160gb hd) i looked that too and it's worth about $810 the thing is, i like to use my daw logic. how do i transfer my application/license to this other computer if i was to trade? and is this a good trade considering that my current computer is supposedly worth more? i'm doing it because of the extra ram (since mine only maxes at 3gb) and bigger hd (i'm short on cash so i'm just looking for a quick fix instead of getting external right now for other things on my hd). and longer battery life too since i'm always at school and we all know how hard it is to find an outlet at a community college library. what do you guys think?