The Magician King by Lev Grossman [Book 2 of the Magicians Trilogy]
As I maybe stated when I read the first book last summer... these books are amazing. I've never been a magical/fantasy guy, being a Batman fan I always loved how science was the root of his fantastical themes and villains. When I was in elementary school I barely made it half way into the first Harry Potter because it bored me, I'd rather read Hatchet again and again. Something about fantastical characters usually missing that human aspect, our faults and all.
That's why I love these books. You can easily enjoy them just on the aspect of Less Than Zero meets Harry Potter, but seeing myself in Quentin's failures, hopes, and dreams is what makes me actually enjoy the magical aspects. It's crazy, I never figured myself to read books like this but they are so fun and engaging. They remind me more along the lines of Asimov, Dick, etc. while also giving hints of Bukowski, Hornby, and Dumas.