I'm entering college this coming fall, going to major in computer science, would a Macbook Pro be feasible or should I stick to PC? Should I go with the 13" or 15"? My main use would be for school with whatever they throw at me within computer science. Some light gaming and photoshop. I might dab into imovie and garageband also. Then everyday use(firefox, email, itunes, etc.) I also want the laptop to last atleast till I finish college.