I have passed PMP and pmzilla LL forum was really help. So this is my contribution and hope it helps aspirants :-)

Study Material:- 

PMBOK 4th Edition 

Rita Mulcahy

Went through PMBOK atleast 4 times. During my first pass through PMBOK I also read Rita Mulcahy side-by-side, as it was really easy to understand the things. Rita is a nice book and provides you great insight, but I went through this just once. In the examination you are tested on PMBOK only :-) Tips and Tricks in Rita were really usefull at times during examination.