Marked by Kristin Cast

This may be a strong substitute for the Twilight series. I am only a couple chapters in, but so far I am enjoying the tenor of the book. The story is conversational, not so contrived and self-involved as Twilight. And I actually like the protagonist. This is the first book in the series.
The premise so far is that vampires exist, it is a genetic abnormality, but they are still considered monsters. Once the fledgling vampires (that until now are human) are tracked down they have a limited amount of time to get themselves to the House of Night school where they will learn to be super vamps (or something like that...I have only read two chapters). If they don't get to the school then they will die.
I think it will probably be a nice mix of the Sookie Stackhouse series by Charlaine Harris and the Twilight series by Stephanie Meyers. So far I am really enjoying the voice that they author has created. I have seen these novels all over the grocery store, so you can pick them up anywhere.