You shouldnt buy your wife anything. You need to listen to pax, send her to the class, get her the book. Then send her to the LGS with a couple grand in cash(with out you, we dont want her feeling pressure to please you) and let HER pick out the gun that best fits HER.
Seriously why would any man go out and buy there girl a gun, the girl needs to do it. We dont buy there clothing or jewlery or makeup, we dont know what they like or how it fits them individualy. Why impose our feelings on there gun buying decision?