I just finished what I hopes isn't the last book in the series called The Morganville Vampire series by Rachel Caine. The last book is called Kiss of Death. Its the eighth book in the series and it blew me away.
Now I recommend you read the entire series to know everything that happens. Her writing style just lures you in to keep reading and find out what happens to Claire and her friends.
It does deal mainly with vampires but there are alot of twists and turns that you don't really notice or at least I didn't.
So I'm recommending this series to you. They are shorter fast reads which I found kind of nice.
I just wanted to point out a good book for those that like to read.