I would without a doubt get a Netter atlas and probably the flash cards too. Moore's and Grants are OK but I never used either and squeaked out an A in anatomy. I would recommend against getting a Rohen atlas. They're a fantastic resource for the lab component of the class, but you can just go to the library and get it since its on reserve a day or 2 before the exam.
I tutored anatomy and biochemistry last year and also tutor anatomy to the MD and PA/PT/CRNA students. I can tell you from plenty of experience that the anatomy notes are generally not that great. Probably the single greatest resource is the netter flashcards because they have origin/insertion/inervation/vascularization info.
A couple organizations have book sales within the first week or 2 of school so you could probably get a cheap atlas or whatever other texts for much cheaper than retail. If you're antsy I would suggest half.com or amazon.
For other classes:
Biochemistry: everything is out of the notes, I wouldn't bother with a book
Structure & Function: get one of the recommended histology atlases, otherwise a text isn't necessary
Microbiology: people like the book "microbiology made ridiculously simple" and it seems to be an excellent reference, but the notes are comprehensive enough
Lower extremity anatomy: best class you'll ever take and Dr Bareither's notes are 5x better than any atlas or resource
ECR: get whatever they recommend, especially the bates guide to physical exam
Neuroscience: I bought the Haines neuroscience book because I didn't know my head from my ass in neuro, but you can probably get by with just the notes
During P1 orientation week there will be a panel discussion with the orientation advisors regarding good references to purchase and what's a waste of money, etc.
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