Hey guys. I have a lot of books to buy for autumn quarter coming up next month (two history classes and two atmos science classes). The hardcover and paperback books are pretty expensive, and I checked Amazon to buy some of them. But for my history books, I'd rather get electronic versions if they are super cheap (or much cheaper than Amazon). I hate reading ebooks on my 4 yr old HP laptop, so what are some good places to buy ebooks to view on the iPad's aspect ratio? Lastly, do you think an iPad is a good investment for this, even though I'm in my 4th and final year here at school?