Here's a really great way to save money on textbooks. Find the international edition. You have to do a little research to make sure you get the exact ISBN, edition, etc. These are the same books but softcover and B/W only. As an example, I looked up a textbook for an electrical engineering class and it was about $150 but the International Edition was $30. You just have to be careful. If I get a little more time, I'll write more explicit instructions but I bet you are smart enough to figure it out.