Well I have seen L.O.T.R. and T.C.O.N. before I read the books and loved them. I then read the L.O.T.R. books and loved them as well. I read the Lion, The Witch And The Wardrobe recently and loved it, because the film had followed the book nearly word for word. I heard that Peter Jackson was in some kind of a lawsuit and that is putting a lag int the production early stages and it is not really known if he will direct The Hobbit or not. I read that Sam Raimi is a possible choice if Peter Jackson does not direct, but I certainly hope Peter does direct it, I really do. And I also hope that the next C.O.N. films go well too. As for W.F.R. (Wizard's First Rule), I will just wait until it comes out.

EDIT: I have finished The Chronicles Of Narnia series and I was not fond of the ending. I don't believe I will go to see Prince Caspian because the ending to the book would lead to the confusing end of the last one. So I will just stick with the first chronological three and the first film (I will watch The Horse And His Boy & The Magicians Nephew if they are adapted though).