Please don't take my post as me stating that
First Aid is "
worthless" for incoming first years. On the contrary, its an absolute MUST to own (though you may consider waiting until the start of MS2 so you can purchase the most recent edition of FA when you start to really gear up for board preparation... a good number of my classmates do that). I was just replying that flipping through first aid the summer before starting MSI classes is probably not the most efficient use of your time.
Without question, FA is the gold standard for board review (especially for scribbling extra notes into while studying for lecture). And getting a review book for each subject is wise (just don't get bullyed into paying up the wazoo for the most recent version of every BRS book... 3rd and even 2nd edition versions are fine, and in most cases the text is exactly the same... you can even get away with purchasing an older edition First Aid, if it hasn't been written into... saves a lot of cash, trust me).
Pharm cards are really nice for class. So are micro cards.
I do own Netter anatomy cards, but I wish I didn't bother getting them (they leave out too many potential practical tags). Netter's anatomy atlas is what you'll spend the vast majority of time with (just a beautifully drawn textbook), and you'll be pretty much required to memorize every page anyhow.
If you'd like more info about specific texts and review stuff that I'd recommend, feel free to PM me. (oh, and congrats on being a part of the first class at LMU-DCOM!
)