Yep. my wife got me hooked right after the 4th movie--I then went back and read all the books to date.
I am worried, though, that the 5th movie is going to suck. "Order" is my Least favorite of the books, and that's a LOT of detail to try to pack into a movie.
that being said, I'll be there with bells on the weekend it opens, and there are not one, but TWO copies of book 7 on pre-order from Amazon (I'll be Damned if my wife gets to read it before me--same time, man....same time!!!)