USMLE: Path/Pharm/Physio
Best undergrad course: I second the helpfullness of my undergrad Physio. When time was short I could fall back on concepts I previously learned. I didn't have biochem or anatomy in undergrad; had no problem with these courses. In the meantime enjoy college, this is the best advice I can give you. Really, undergrad is neither the time nor place to start loging in those board prep hours. Come to medical school with a fresh mind and alot of experiences is the best advice I can give you.