How many of you tibook owners here carry it around a lot? How many of you are in college and carry it around a lot? I'm currently a freshman in college and am going to get the tibook as soon as the next revision comes out, whether at the end of this month or during the summer. I will be carrying it around a lot and I want it to last me until I graduate. How well has your tibooks held up? What types of carrying cases, protection, etc. do you use? Is carrying it in a backpack good enough? I currently have a 3 inch thick, 15 lb black pc laptop (SLIGHTLY exaggerated) that I carry around. The thing, however, is very durable. p.s. The iBook is out of the question.