Well first thing's first, you may read that BEC is the “easy” section since it has the highest passing rate. Get that thought out of your head right away. BEC is not easy. Since you're starting with BEC, you won't have anything to compare it to but you really need to treat BEC the same as the other exam portions and spend the appropriate amount of time studying.
With that out of the way, Becker does a pretty good job of laying a foundation for what you need to know and NINJA is a really good supplement to the Becker material. The main topics covered by BEC are Governance/COSO, Cost Accounting, Financial Management, Information Technologies / Accounting Information Systems and Economics. That's B1 thorugh B5 respectively with B6 being a lot of smaller topics that could appear on the exam but aren't tested heavily enough to justify an entire chapter.
B1, B2 and B3 are going to take you the longest to get through. B1 – B3 are very calculation and formula heavy. B4 – B6 are almost entirely conceptual. With that said, you need to know the formulas. They are, heavily, tested on the exam.
Everyone worries about the Written Communication portion of the exam but it's not worth stressing over. Watch the Becker lecture on it. Read through the examples and move on. Nobody really knows for sure how the portion is graded (since it's done by a computer) but the consensus is that writing a good memo (proper structure, good grammar, no misspellings) is far more important than answering the question correctly. You'll lose a couple points for missing the question. You'll lose a lot more if you type a really bad memo.
Finally, good luck.
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