Hello all, I'd be very grateful for your opinions. I have an iMac at home that is a few years old but still quite powerful and gets the job done. I'm starting grad school and would like something lightweight and portable for computing at school. Although I'm used to and happy with MacBooks, I'm definitely interested in the MBA. I am not familiar with the MBA and even after looking at the specs, I'm not sure if it is the right choice. Heavy computing can be done at home on the iMac. At school, I'll need the following (with several things open at once): 1.) Use the entire MS suite (not all MS apps at the same time, but one or two open at once) 2.) Have a couple of PDFs of good size open at the same time as MS apps and other things on this list 3.) Connect wirelessly to to the Internet to make us of powerful web apps 4.) Access the school's VPN 5.) Give Powerpoint presentations that make use of video, etc. 6.) Use statistical analysis software 7.) Maintain a small to medium library of docs and PDFs, if possible There are likely some other ways I'll be using the computer, but that list likely covers the main things. What are your thoughts? Will the MBA do, possibly with me making a few adjustments (such as keeping a smaller doc/PDF library by making use of online storage)? Or do I really need a MB? One other note: To keep costs down, and since I have a good iMac at home, I'd like to go with a lower end MBA or MB, too. Your help is greatly appreciated. Since I don't have a lot of cash to throw around, I want to make sure I make the right choice!