Well, there are differing schools of thought on buying books. Some people choose to build a medical library, and others buy the bare minimum of books needed and sell them the minute the final exam is over. Personally, I take the former approach and have about 5 general and lower extremity anatomy atlases in my collection by now, but that's certainly not required.
For Barry pod 1st semester, these are the basics which you will need to buy (I'm assuming the faculty stays the same, no reason why it wouldn't):
Gross anat:
-class notes and class lab manual (buy from professor or secretary first week of class or before)
-anat atlas (Netter, Gray for students, Thieme, etc),
BioChem:
-professor's textbook and note packet (at Barry bookstore only since he authored them)
Histo:
-professor's notes (buy like anat notes)
-histo text/atlas for lab (I forget the name, but it'll be in his syllabus)
Intro to Pod Med - no book
Research - I'm not sure because I had a different prof... I think just his lecture handouts, though
The BioChem book lasts you for two semesters (BioCh I and II), and the Netter atlas will be used over and over until the binding breaks
The only book I didn't really use very much was the histo lab atlas, but that was also the only class that I got a "B" in that semester. Maybe I should've used it a bit more 😛 . There are some good histo DVDs floating around, you should get them from your big brother/ big sister during orientation. There's also some good free websites with histo and path slides (KUMC, UIowa, etc).
I'd definetly buy a Netter Atlas. The old versions (2nd or 3rd) are just as good as the new 4th edition one. The Barry anat teacher doesn't specify page numbers or anything, so if you can find an used older edition that's in good condition, save your $. You can never know anatomy too well; the Netter is a great one to order even now if you're bored. Flip through it in your leisure time and get familiar with the terminology. In gross anat, you will begin learning the chest first, then abdomen, then head and neck, upper extremities, and finally pelvis. You will likely desire an atlas with more lower extremity detail and views when you take LEA, but Netter is a good foundation.
