For texts I have William's OB and TeLinde's Gyn.
I have Ob/Gyn: just the facts as an outline/review book. For some practice cases I have Ob/Gyn case files.
For my lab coat I have the Wash Manual and the little red book. Actually, what I am doing is compiling the important managment info and pearls, as well as note oulines out of many sources and compiling them in a little 6 ring notebook, which I will carry in my lab coat pocket with the Wash manual.