This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
I took the exam today and got 84%. THe materials that I used for preparation were Head First book, took mock exams in Whizlabs, went through the J2EE 5 API docs, and the JSTL docs. I used Nebeans IDE to figure out which were required attributes etc for Core JSTL tags etc. I felt the exam was very similar in difficulty as the Mock Exam of Head First Book, expect that the UI of the exam was not so user-friendly.