probably the only topic that stands out of the others is pharmaceutical calculations, just make sure you are reasonably good at this topic, the other topics kind of occupy the equal but random importance,however I do feel that there maybe more emphasis on the commonly occurring disease conditions and the therapies for them, I mean diseases like diabetes, asthma, cardiovascular and obesity, these are a must for us pharmacists, and of course these are not exhaustive. I think with NAPLEX you have to be a jerk of all trade and master of none.