MS4 here: I'm sure you've done the rotation at this point, but I read both baby Miller and Anesthesia secrets. I liked baby Miller better. They both have essentially the same information, including many sentences that seemed almost word for word, but I like reading in paragraph form rather than individual factoids. Sections 2, 3 and 5 are all you need for your rotation. Be familiar with the top ten drugs: Versed, Fentanyl, Lidocaine, Propofol, Gases, Etomidate, Sux, Roc, Neo and Glyc (there are many more, but those are the baseline to know ahead of time if you wanted to be mildly impressive). Being familiar means mechanism, onset/duration, common side effects, contraindications...doses if you want to go the extra mile. Those plus airway knowledge will put you ahead of the curve when the rotation starts. Course this is all from the med student perspective...you'll need to/will learn more for residency and beyond.