1. USMLE Step 2 SECRETS. If I had only one book to use this would be it. If you know this book you'll do fine. Just some advice: this is the same book as CRUSH. Written by the same guy with the same words even, just different format. Dont buy both!
2. Kaplan question book. The more questions you can do, the better.
3. Simmons for OMT.