i'm deciding on a new ibook, and i know that the 14in gives you more for your money. however, i will be using the ibook mainly as my laptop for college and think ultra-portability would really ease things up. the superdrive doesnt matter much to me and i have a 17in external LCD so screen size doesn't matter. if i maxed out the ram on either model is there a big noticable diference between 1.33ghz and 1.42ghz. i'd mainly be using basic apps (iTunes, iPhoto, MS Office or iWork, Internet, Email, etc.) so theres nothing too intensive that would run on the system. anyone have any views on this, esp the portability of the 12in over the 14in?