I found Princton Review's book that they use in their course to be extremely helpful. I learn much better by studying on my own and just outlining/taking notes on the material I read, so I can't really recommend lectures (I just bought the book online).
I also really recommend Kaplan's notecards that they include with their course. See if you can buy these off of someone. They're great for the last few weeks when you want to quickly assess what you need to work on (don't use them as a primary study tool, though).
Also, take as many practice tests as you can. At least all of the AAMC exams.