As per your recommendation, I just wanted to let you know that I have placed orders for reserve copies for the following books at the Cooper Library (they should be there soon):
Bioelectricity: A Quantitative Approach
Publisher: Springer; 3rd ed. edition (June 21, 2007)
Medical Physiology, Updated Edition
by Walter F. Boron, Emile L. Boulpaep
Publisher: Saunders; Updated edition (November 19, 2004)
I also wanted to let you know that if you have friends interested in taking the course (who are not sure about the courseload, prerequisites etc) you can let them know that the course will get in full swing this coming Wednesday, so they haven't really missed much in terms of course material (i.e. it is not too late to join).