I might start splitting hairs when it comes down to it; maybe a direct or diffuse center back would be optimal for some films, and not others.

For instance, say I listen to a direct center back setup with a movie LOTR and I love it. Maybe it wouldn't work so well with another optimized HT audio film like Gladiator (sigh). I guess I'll just try and audition as many films as I can at a local stereo shop. I can be very indecisive in these situations, but I appreciate your help JOHNK---I've read quite a few of your responses on the message board and I can tell you're very knowledgeable...thanks again.