I've heard certain courses also help with the MCAT. A few I have heard have been Microbiology, Genetics, Cell Bio, Molecular Bio, and Biochem.
FWIW, I am taking Genetics and Microbio before I take the MCAT, mostly because I hear that Gentics can be really useful and I am taking Micro because I can fit it in my schedule, but I would rather take Cell Bio. Eventually though I am going to take them all.
dxu
p.s. Does anyone know if I should take Molecular Bio if I have the chance? How helpful would it be on the MCAT?