I too was a little disappointed with LWW, I feel they could've done some better battle scenes and some of the scenes seemed very cartoonish as opposed to what we had with LOTR. I am definately looking forward to the next movies though!
I always got the impression that LOTR was a more "mature" series, than the Narnia one.
I really, really hope they make movies for all of these books. They're all so awesome. I know even with LOTR, they didn't keep to the books 100%, but it's still an awesome movie series.

I'm watching that one again, thoroughly enjoying it.
On a side note, anyone ever heard of C.S. Lewis' Space Trilogy? That's an excellent read, too. It'd be cool to see that come out in a movie, too.
I have so many other thoughts on what books ought to be made into movies, too. That's just me. Very excited about the Narnia series, nonetheless.