There's one test all year that draws heavily upon things found only in the reading, and that's the written portion of the gross exam for pelvis and perineum. Borrow a copy of COA for that one. You can have mine for a bit if you get in touch. Other than that, everything you need will be in the slides. There are a few pictures that are taken from the books, but if you know what you're looking at, you don't need them. I think micro has 3-4 suggested texts anyway, so you're seriously be wasting your time and money trying to track down all the picture that might be on an exam. Just know the characteristics of each slide, and you'll be in great shape.
My study plan was to go back through the day's slides and read the relevant review book sections afterward. That's definitely all you need. Do not buy Devlin or The Cell. Both are immense wastes of time.