Just thought I'd point out, a buddy of mine has an MBA and she utterly hates it. You think MBPs are hot and unsuitable for use on your lap? Just wait until you've tried the Air.
Between a MacBook Air 13" and a Pro 15".
Summary
With this considered, I would appreciate an opinion. Leaning toward the Air, but I am wondering if it will last me 4+ years and wondering if it is appropriate for a college student. Will not be majoring in anything computer oriented or involving photo editing, video editing etc. This will mostly be used for college work as a supplement to the iMac that I have at home (in the case that I would need more power). Thanks.