Best study tools/most useful books to use to study for AP bio?

I took both A/P 1 and 2 and did very well by recording my classes on a small tape recorder. That way I could pay attention to what the professor was saying while in class and then listen to the recording again when i got home so I could write my notes and review. You tend to miss out on alot when you have your face buried in your notebook trying to keep up with what the professor is saying. Sometimes watching the professor and remembering the way he explains stuff helps to enhance your memory since you are putting actions along with his/her words. Plus you have the option of hearing the class again and picking out the important parts of the lecture