I'm an 18 year old college student who has to lug around a backpack 8 hours a day, 4-5 days a week. Having a laptop with me is a must, but I need to reduce weight in my backpack. If I bought an Air to take to school, I would be dropping around 2 pounds, plus whatever I lose by leaving my study guides at home. For most people, the weight wouldn't be an issue. However, I have a lot of shoulder and back pain from an accident about a year back. So for my first question, does buying an Air to take to school/library make sense? I use my regular Macbook for everything else that I do. Now for question number two. I wanted to buy a Rev A refurb for $999. I am aware that they are glorified netbooks, but they must run faster than an Eee, or an Aspire One. I would keep and use my netbook, but I cant stand the screen size, buggy OS and keyboard. I need to use Word, email, Safari, iChat, and possibly Preview (all at the same time). Is that going to be doable without headache? I also want to be able to watch DVD rips at home on it, they are 640x480 res. Are those going to run properly? I don't expect one person to answer all of these questions, so any that do get answered are greatly appreciated.