I would agree – do all the questions. Also write your own notes. It may seem like you are rewriting the book and why should you do that when you have the book all highlighted with everything you need to know? But there is additional learning in your rewriting of it, and refiguring of problems. I also made my own flashcards, which also helped me learn and review. Make sure to save a few days before your exam to do the practice exams (they each take 4 hours) so that you will be familiar with how the actual test will feel and can review your weak areas.
The last week I reviewed each chapter again, writing and rewriting more notes on things I felt fuzzy on. In my experience, I felt that the SIMS on the test were harder/more extensive than what was given in Becker. Not sure how else to prepare for those other than to know your material well. And make sure to save enough time to do them at the end of the exam (I would save at least 90 minutes, if not more).
I also began with FAR, hoping to get what some consider to be the most difficult test out of the way first. I figured if I didn't pass it, then at least the 18-month clock wouldn't start ticking yet.
Good luck with your studies! FAR is a LOT of material, and you will probably feel overwhelmed at first. Don't focus so much on one section that you move at a snail's pace. I wanted to do that because I feel better if I know something backwards and forwards before I move on, but I was taking a class that pushed me to complete 1 chapter each week, so I had to keep moving. Probably the best way to do it, although it doesn't feel good. Try to do progress tests at the end of each chapter too; these include questions from all previous chapters and help to keep the information fresh.
FAR - 92 (4/27/12)
AUD - 96 (7/17/12)
BEC - 92 (8/30/12)
REG - 91 (11/12/12)
.