The Magicians by Lev Grossman
This was a great book, it totally subverts the Narnia/Harry Potter genre with real characters with real problems. You should go read it. Warning: if you're offended by sex/language, you should deal with it and still read this book. Don't worry, nothing unnecessarily graphic.
The Amulet of Samarkand by Someone I Forgot
It was good, but reading it after The Magicians may not have left me with the best of comparisons. The characters seemed a little one-dimensional. It was a good story, don't get me wrong, but it didn't seem to be any more than a story--there didn't appear to be a theme or message to the book. I like fiction that illustrates an author's viewpoint(s). It is entirely possible that such a theme could be developed in the next books in the series, however, so I'm withholding judgement.
Snow, Glass, Apples by Neil Gaiman
Amazing retelling of a well-known story. Disturbing. It's a short story, and I managed to find it on-line for you. I read it in a collection of vampire stories.