Once the TV series kicks off, you should find the books reprinted and in bookstores. I think she once mentioned Borders so if you have one, you might get lucky there.
And ditto what Shadow said. You kinda want the bad guys to win. It's not a favourite of mine but it is one of her best works, you can tell she put a LOT of thought into it.
CR: last sacrifice-vampire academy by Richelle Mead. Heard a lot of good things about this series. But then i heard a lot of good things about Twilight too, so I'm going into it with no expectations this time.
Oh. I'm glad I finally finished Stefan's Diaries. My word was that ever a painful read!