Here is an incomplete list of some first-term books to look into.
Anatomy atlases
Grant's - illustrated and a classic, but Netter's is more clean and clear to me
Netter's - illustrated, very clean and clearly depicted, the one most students use, occasionally hard to find things because it has too many labels!)
Color Atlas of Anatomy by Rohen/Yokochi - photographs of some very good dissections. Much easier to find things in than the illustrated atlases, since many "extra" things labeled in the illustrated atlases actually cannot be seen in a real dissection.
There are more atlases, both illustrated and photographic -- look into those too, but these were the ones that came off the top of my head and are the most frequently "prescribed." I actually bought two atlases (the last two I listed).
Anatomy textbooks - Some authors wrote a huge mega-textbook, then spun off simplified versions and then reviews. Look into the whole range-- you might find yourself preferring to learn solely from the review book rather than the mega-book, etc.
Richard Snell
Keith Moore & Anne Agur
I forget what else there is -- I didn't pay much attention to these.
Histology atlases
Jeffrey Kerr - Has good photos, but virtually no verbal explanations, so a good textbook and/or study guide is needed.
Wheater - Has very good verbal explanations plus the essential photos, but occasionally I couldn't recognize slides from some of the photos.
Again, there are others, so shop around.
Histology textbooks
Carlos Junqueira - Was originally written in Spanish, then translated. It is one of the most commonly assigned texts, but Spanish is a much more "rambly" language with lots of commas and long sentences! I did not like, but didn't see that much else out there. Some students, however, did like it.
There are other ones, though-- shop around.
Physiology textbooks
Guyton & Hall - Thick full text.
Berne & Leavy - Another thick full text.
Linda Constanzo (Saunders Text and Review Series STAR) - Basic text, sufficient for the boards and has clear verbal explanations plus essential graphs.
Other stuff
Board Review Series (BRS) - You will see this in the medical textbook section. It is a series of study guides for various subjects throughout medical school. Pick one up if you like the outlines -- study guides can be very helpful, and occasionally students rely only on the study guide and no more. (I can't survive that way, but some do.)
High Yield Series - More study guides. Cheaper, but also less in-depth-- in most cases, I would not rely solely on this to get by, but use it to supplement another textbook.
An embryology text - Sometimes there is no formal embryo class, but embryo gets stuffed into the lectures and exams of all subjects, even though there really is no embryology explained in your basic anatomy or histology textbooks. I found myself relying heavily upon an embryo textbook (author Larsen - wordy but well organized and has good verbal explanations). You can survive with a study guide (see above) also. Need for an embryo textbook may vary by medical school, so wait until you find out where you're going first.
I didn't find a medical dictionary to be that helpful. When I needed to look something up (rarely) I could find one lying around in the student lounge, the mailroom, the library, etc.
What else? Uhm... Ooh... A copy of Maxwell's Quick Medical Reference.
