Question For Current Midwestern CPG Students

I was just trying to figure out how much books will cost for Fall 2007. Which books do you feel are really needed for Fall quarter of the first year? I have listed the classes below... I've heard that many of the suggested books aren't really necessary?

Human Physiology I
Biochemistry I
Pharmaceutics I
Health Care Systems
Intro to Professional Practice I
Interdisciplinary Health Care

Any info would be greatly appreciated!!