I am a huge fan of the Vampire Chronicles by Anne Rice and I really thought that I had read every one of the books. I even own a number of them. So, imagine my surprise when I discovered two Vampire Chronicles that I had not read at my local library. Of course, I immediately borrowed one.
It was not a disappointment. Blackwood Farm tells the story of a new vampire, Tarquinn Blackwood. He sees ghosts and has one spirit in particular who has followed him throughout his life as his double. Once Tarquinn became a vampire, however, this ghost became dangerous and started attacking him. This is a typical Anne Rice story. I you don't like her writing, I would not recommend it, but if you are a fan, then this is a great read. Lestat and the Mayfair witches both appear in the book, so it's helpful to be familiar with both the Vampire Chronicles and the Mayfair Witch books.
By the way, if you are interested in historical fiction, you might want to check out another book by Anne Rice, The Feast of All Saints. It is set in New Orleans and follows the story of a family of free blacks in the time of slavery. Not a vampire in sight, but a good book :)