I wouldn't buy anything actually. I know it's tempting to want to buy all you can now to be prepared, but you may wind up buying alot you don't need doing it that way. All schools are different. Wait until the first week of class. Talk to second and third years. Some of the "required" books and equipment aren't in fact required at all some places. I'd say the only things you definitely could be comfortable getting up front would be a stethoscope and an anatomy atlas. Good luck.