i will be buying my first ever mac soon, so i eliminated all the other macs and came down with these 2 choices. i will be using it for web browsing, watching youtube, editing vids with imovie, and playing sc2 occasionally(during weekends for 2-3 hrs). im worried that the mbp 13" hd3000 wont last long as it is a fairly weak gpu, but it has the new sandy bridge processor. the mbp 15" is a more balanced laptop in my opinion, as it has an i5 proc, and a fairly good gpu. what would be a better buy for me?