Hey Doggy,
A good foundation for your studying (the very least you'd have to do for a reasonable score) would be:
1. First Aid (memorize every detail!)
2. BRS Pathology (read twice)
3. BRS Physiology (read twice)
4. Board Simulator Computer questions.
I did these four things and got my exact (and I mean to the number!) goal for step I.
A lot of people don't like to do BSS questions because they don't "reflect what's in the actual exam." In other words, their style of question is different, and they ask a lot of questions in a row about one topic.
However, a question is a question, and, once you get through the 3500 computer questions, you'll feel pretty comfortable about your knowledge base.
Besides, every question that you see again, and that you know the answer to, that's something that you learned, a tiny kernal of knowledge that you didn't know before hand.
If you don't remember the answer, it's something you need to re-learn. A lot of times the questions are knit-picky, but they get at points which are very important. Perhaps you don't need to know the exact amino-acid sequence of insulin--but you do need to know where it comes from, what it does, why it's made--what Peptide C tells you about too much insulin (endogenous versus exogenous). Very general, fairly easy concepts that are great for review.
The explanations are terrific in BSS. For instance, I didn't have a terrific strategy for Acid-Base physiology until I read their question explanations.
If you do those 4 things, you'll achieve a great score. If you want to kill it (get higher than, say, 240), you'll need to do some more.
Oh, for Embryology, I read "High-Yield," and that's ALL you need to read, given the fact that I had about 4 Embryology questions out of 350 (and most of them were Embryological defects that you see in pathology anyway).
