I was browsing some medical blogs and found a link to an article at HowStuffWorks.com. Dr. Carl Bianco, MD, has written a pretty good overview of the traditional path to earning the two initials.
I didn’t get a chance to read through the entire thing, but from the looks of the contents listing, it covers a lot. Dr. Bianco discusses everything from high school, college, medical school, residency, and the licensing exams.
Here’s the link to the article: Howstuffworks “How Becoming a Doctor Works”