It's actually been a couple months since I read Beastly, by Alex Flinn, but it left me with a good impression even a few months later. In her retelling of Beauty and the Beast, Flinn retells the story from the Beast's perspective, in a decidedly modern setting. I think this is a lot like the way that Shakespeare's stories can be so effectively set in high schools -- emotions run high, everything that happens feels vital and -- whatever the reason, the setting and point of view are very effective in this retelling.
As I recall, this was a quick and engaging read. Not too complex, being aimed at high schoolers, and after all, we already know the bones of the story. Flinn did a nice job of fleshing out the characters believably, with a few twists to keep things interesting.
There's an excerpt and more reviews for Beastly here: