I'm very certain I want a 2.5 version of the mbp. What I haven't decided on is whether to go with the 15 inch or 17inch. Pro/cons of either? Screen size isn't the main point. I'll be on the move with it sometimes, but I don't think the larger size/weight would bother me much. I would also like the extra amount of screen, I won't have an external display right off... Is one more prone to defects than the other, anything different about the two in terms of performance, given they have the same specs? Also, to throw in...whatcha think of Time Capsule?