Okay, so my pc pooped out (my fault ie physical damage) and i'm looking to upgrade. i spend most of my time that isn't school work editing videos in my free time. i mainly use my gopro hd for footage but also use HDSLR footage. I would like to know what MBP to get. I'm torn between the high end 13, because of the size and price, and the low end 15. Does anyone have opinions between the two and could anyone help me in my decision? Thanks!