[Winter Lord]

A zombie trilogy by David Wellington

Monster Nation
Monster Island
Monster Planet

I think one of them has been opitioned by a movie studio. You can find them serialized online.

Here are some vampire novels, by Christopher Golden (The Shadow Saga)

Of Saints and Sinners
Angel Souls and Devil Hearts
Of Masques and Matyrs
The Gathering Dark

(spoiler) If you are a Christian, you might not want to read them, as Jesus was supposed to be first human vampire. He destroyed a group of demons, but in doing so, he started to turn into one of them, but his divine nature caused him to turn into something else, the first Vampire.(spoiler)