I used Becker to study, and I've passed three parts on the first try. By nature I am a procrastinator, as I find that I retain more of the information from the last week of studying than any other week. I spent two-three days rereading all of the chapters. I took notes about formulas, acronyms, or other oddities that I knew I would want to remember later. Then I just did MC after MC after MC. I did not spend a lot of time practicing the simulations, as I believe that if you know the information, you will do well on the simulations, regardless of how many times you practice. I like to think of the practice simulations as a good way to learn how to do simulations, but not so much for the information. Make sure you get a good night's sleep before the day of the exam (I took Advil PM to ensure I would sleep).
Regarding the practice MC's - my biggest issue was that I started to actually memorize the questions from Becker, so I found that I wasn't actually learning as much. Try to switch it up with other MC's. I also believe I read somewhere on one of these posts that Bisk offers an MC download for around $60. I didn't use it, but I would say it's worth a try. And try not to get frustrated about not getting the answer correct - it's more important that you understand why you got the answer incorrect (sappy, but very true!).
Good luck with your exam!
REG - 83(6/09); FAR - 91(8/09); BEC - 83(11/09); AUD - 1/18/10