Hi tjones. Here's my two cents—
I took FAR first. I felt that if I can pass that one, I could most likely pass the others. Plus, since I've heard from the majority that FAR is the toughest to pass, I wanted the 18-month clock to start with that one (as opposed to starting with an “easier” one and having the credit drop off the table). I went to the live Becker class for FAR, but I wish I had just started with the self-study. The self-study allowed me to be more flexible with my schedule. Plus you can stop the lecture if you don't understand a topic, or to attend to something else. So, with that said, if you can follow through on the self-study, you can prepare and take the exams in any order you want (as opposed to being limited to Becker's class schedule). Hope that makes sense.
I followed up FAR in this order: BEC, AUD, REG. There's nothing magic about this order. But, my approach was to start out with the hardest, and finish with what I guessed would be the second hardest (and I would say that was correct).
Becker does a good job of preparing you if you follow their formula. I'm sure Yaeger is good too, but I don't have any experience with them, other than what Jeff and others have said on this site. I'm sure there are other opinions on the best approach.
Lastly, if you decide to switch from LIVE to SELF, I'm sure Becker will work with you to change that. If you do it soon enough, they might not charge you an extra fee for the switch.
Best of luck!
FAR 86, BEC 82, AUD 80, REG 83 Done, thank God - CA