Alas!! passed SCBCD yesterday. Thanks to Kathy Sierra and Bert Bates for the great book.
The exam was easy once I crossed the intial jitter in which I messed up a couple of drag and drop type ejb-ql questions even after spending more then 20 mts in the begining on those 3 questions.
The problem was Sun's software for drag and drop question was crappy, you have no way of partially answering the question and return to it for correction, because if you do your previous answer to the question was wiped out. This happens only for this special window questions, the regular multiple choice and single choice are saved and you can return to them by marking them.
So, I will suggest using a simulator software for practicising this question type.Other then that Head First Book is more then suffiecient to get a great score on the exam.