Note: Due to NDA, I won't discuss exam, but will give you advice on how I prepared! Fair?
For the impatient guy: Passed 1st attempt, 4 weeks prep, used Myers, ExamCram, CertMaster,tonnes of exam practice and hands-on.
Grandma version: After years of being in field, thought shine my resume as I'm also looking for a job

, so trying to validate my skills. Thought I would prep for this in a week, I was wrong; lots of details, lots of facts. In a sense I over-prepared, but I could use the knowledge for other certs. Used Myers, ExamCram, some Sybex, CertMaster, did tonnes of questions/exams on any book I found (have Safari subscription). Took lots of notes and reviewed them often. I didn't user Messer's videos. I don't learn from watching. As I was doing practice questions, I made a HUGE discovery where I was screwing up; hopefully this will help you too: Read questions and answers CAREFULLY not Carefooly!
At times I would get an easy question and then discovered it wasn't because I didn't know, but because I didn't read CAREFULLY! For example, if a practice question said "Which of the following is not sweet", sometimes I wouldn't see the word "not" and mark sugar as the answer!
Dohh!
So practice questions not only helped me with material, but also they helped me discover "why" I made mistakes
My advice: Practice, practice and get hands-on. I had an old PC and day b4 exam ripped it apart, looked at all cables, power, cpu, HDD, etc, etc.  So pay attention to "why" you make mistake. If you do enough questions, you will find a "pattern of mistakes". Work on those mistakes.
Hope this helps!