I passed my PMP today with Above Target in all areas. I used the PMBOK guide and the PM PrepCast as my study material. I read a chapter of the PMBOK and then watched the associated PrepCast video. I followed the order recommendations from PrepCast. Once I finished all the videos I took a PrepCast mock exam. After that exam I reread the bottom 3 knowledge area, paying extra attention to the interactions of the various processes and I memorized the formulas (if you can memorize these the math questions should be "give me" questions, there is no reason to miss these). I made sure I completely understood how all the processes interacted with each other, where inputs come from and where the outputs go (I didn't try to memorize the ITTOs though). Then I took another exam and repeated the process. I took a total of 7 exams on PrepCast plus a few other random free exams and quizzes. My results for the PrepCast exams were: 78.5, 76.5, 82, 77.5, 85.5, 83.5, 87.5.