I am in the market for a new notebook. I was planning on doing a combination of a Macbook Air (11" or 13") and an iPad. I am a medical resident and read a lot of journal articles (PDFs) and online text (textbooks/medical websites). I also have to create a lot of presentations as well. In my free time, I also stream videos online. I was planning on getting an iPad for light internet use, note taking during lectures, and reading journal articles/online textbooks. The Macbook Air would be more for personal use, as well as, making presentations. Do you guys think that would work? If so, what would be a better option for me, the 11" or 13"?