Oh what texts to get! As an SRNA finishing up the first year, I must say that I wish there were a simple answer to this question. For what it's worth here's my rankings of the texts I'm familure with:
1)Basics of Anesthesia (aka Baby Miller): great book, hits all of the important topics well. Several CRNAs and MDAs have said this is THE book to get to you through your boards
2)Clinical Anesthesia, by Barash. A litlle more depth than Baby Miller but remains fairly readable.
3)Anesthesia, by Miller. This 2 volume SOB covers it all. If you want to know what the effects of Desflorane are on a rat, while hung upside down, the study will be cited in somewhere in the text.
4) Clinical Anesthesiology, by Morgan and Mikhail. Great intro to anesthesia book, but lacking in depth.
5) Nurse Anesthesia by Nagelhout. Like M&M a great intro to anesthesia but lacking in some areas.
I have to say that my ranking is influenced by the fact that as part of my program we do case case reviews with the Anesthesia residents. Citing M&M or Nagelhout is the same as telling the residents to disregard any input we may have.
I haven't put together a good collection of PDA programs yet. Epocrates is great, as it is free. If you want to drop some cash ($69) Sota Omoigui's Anesthesia Drug Handbook
gives much more detail (available through skyscape).
Finally, I have to say this is my first posting. Nilepoc turned me onto All Nurses almost a year ago and I've been lurking ever since.