Hello now i will mention i have been using pc's all my life until 1year ago i got a mac mini ( current computer ) and ditched pc for good, even though i consider myself very good with computers ( i know how to program java hack wifi etc ) i dont know much about the life span of mac computers. I am a photographer and a student looking at the new 17 inch mbp for a couple reasons long batt life ( i dont care that its not replacable not a problem ) high res screen ( this computer will serve as a desktop replacement as well ) decent GPU and fast cpu ( looking at faster 2.9ghz option ) I will use it mostly for extreme mutl tasking ( 10-20 windows open at any given time : photoshop , aperture, MS word , firefox etc ) so first question is it worth the faster processor and hdd speed? ( dont have money for 8gb ram ) and how long do you think this will last me until this laptop is nothing more then just macbook speed? ( i mean when will it become so obsolete that a macbook out preforms it? ) thank you and sorry for the spelling and the long post. edit: and i heard that the 17inch has better color then most laptops do is this really the case? i have a spyder 3 pro ( color calibrater ) will it match up to average desktop lcd color?