i've used becker (not live) and bisk self study .  the bisk lectures and book don't coincide.  if you're using becker the lectures are essentially a rehash of the book so you know that you've gone through the entire textbook when you finish all lectures.  bisk has really good books with tons of questions which are more than sufficient (really wish my girlfriend didn't throw away those books)...both are very good and provide essentially the same information --- as long as you can get all the way through through either course you will be fine ... i, on the other hand, have not completed either program all the way through so my results are typical of someone who has