I've been totally into Charlaine Harris's Sookie Stackhouse books.
Sookie is a waitress in Bon Temps, Louisiana and has what she calls a "disability": she can read minds. Vampires have recently "come out of the closet" and Sookie unexpectedly realized that she can't read a vampire's thoughts, which is a most welcome relief. Soon she finds herself deeply involved in the emerging vampire culture and discovering more than she ever knew about various creatures that go bump in the night. Sexy, mysterious, funny, wicked fun. Little candies.
You'll find a lot of similarities between Twilight and this series, but I'd probably be more comfortable with my teenage daughters (when I have 'em) reading this series than Twilight, oddly enough. There's tons of sex, but it's not dealt with in the weird mormonistic way that Twilight deals with sensuality. What I really like about the books is that Harris has really thought about what it would be like if vampires really did make a sudden appearance on the cultural scene. Special airlines, hotels, bars. Synthetic blood markets. Fang-bangers (humans who get a kick off being bit). Drinkers (human junkies for vampire blood). New rights, laws, and regulations. Very fun for the brain.
I'll post the book quotes soon!