Hey everyone, I need some advice on a particular situation. So I'm in college, just finished my first year. Last year I got a new 17 inch MBP. The thing is a beast. However, it has become a little too big to fit in my backpack with all my books and doesn't always fit on the desks (I know, poor planning). I also have a 2008 15 inch macbook pro (the first unibody model I believe). I saved up and bought it myself but it's become a bit old. It has a 2.4 core 2 duo with 4gb ram and a 250GB hard drive. It still functions, but it has its problems every once in a while that make me somewhat nervous. Now I want to use a smaller laptop than my 17inch to bring to classes but I'm not sure whether to sell the old 15 inch MBP and get a MBAir or not..Another option is to try to make the 15 inch Pro a little more usable, but I'm not sure how much more can be done (besides replacing the battery). Thanks for all the help! PS. I wasn't sure whether to put this in the MBP or MBA section so feel free to move it.