I am going to pick one up soon. Keep going back and forth between Nagelhout and Miller's. And if i want the full set or just the condensed version. Big investment for the full set.
Miller's is incredibly detailed and comprehensive, but it is expensive.
One that I really like - probably my favorite, actually - is Morgan & Mikhail's Clinical Anesthesiology. It's more concise and easier to read than these others though, so its great for reviewing a topic quickly but not the best if you are trying to study something in depth.
Stoelting's Pharmacology and Physiology in Anesthetic Practice is excellent, as well. Considerably less detailed and in-depth than something like Rhoades or Guyton & Hall's, but it covers everything pretty much and is easier to read and understand, and of course focused on anesthetic practice.
I would recommend Nagalhout's Nurse Anesthesia. All the same meat as the others, but IMO it's organized better and is generally a little easier to read and digest. If you primarily just want a good pharm text, then Stoelting's Pharm & Phys is really good and is quite a bit cheaper, I think.
I rarely refer back to my texts but I like books and I plan to probably always own a recent (if not the most current) version of a handful of texts: Nagelhout, Morgan & Mikhail, Stoelting's Pharm & Phys, Stoelting's Anesthesia & Coexisting Disease, and Netter.
I also still have my old Brady Critical Care Paramedic text that was published in 2006.