After months of deciding which laptop to buy in the next few months, I finally settled on a 15" MacBook Pro. But now that the 17" was just released, and looks like an amazing laptop, I'm again confused. It will be a desktop replacement in college, and I'll take it to all of my classes. The weight, at under 7 lbs, is not a big deal for me at all. I'm worried about the size. I love having a 1920x1200, 17" display for tons of screen real estate. I edit movies, and edit photos, as well as basic web design, so having the space is important. However, I don't want to have the burden of a laptop that is too big. How big is it? Is it true I won't be able to use it on airplanes? On desks in a college class or lecture?