I have to recommend "Learning to Play God" by Dr. Robert Marion, MD. He is *not* from Harvard (gasp!) but instead has a much more personal story, one that is easy for the average med school applicant to relate to.
It is, in fact, the story of his journey through the process. He started at a foreign school (RCSI in Ireland), and managed to squeeze his way into Albert Einstein in NYC. Through a series of small but significant personal successes, he made it all the way through internship, residency, and fellowship. It makes an interesting story, and I hope my own struggle will go as well.