First my prep cast simulator scores since I enjoyed seeing others.
PMP Exam 1 75.5%
PMP Exam 2 78.5%
PMP Exam 3 81%
PMP Exam 4 77.5%
PMP Exam 5 83%
PMP Exam 6 78.5%
PMP Exam 7 81.5%
PMP Exam 8 84%
I studied for 4 weeks, reading the PMBoK, listening to the prepcast, and taking the simulator exams. No other material is really needed. As for the simulator exams, use them to find the gaps in your knowledge, as others have recommended.
I passed with 4 Above and 1 on target in about 3 Hours.