Fedaykin, LurkerzRule, Shiningstar,
I loved the Dune books as well. Even wrote about them in a musing! (Terror at 20,000 Feet). I loved the movie. I thought SKiffy did a pretty good job of their version of Dune, but I still like the movie better, it really captured the essence of Herbert's ambience.
I recently bought House Atreides, but haven't had a chance to read it yet.
Dune was a truly unique work. Loved the Bene Gesseret cult. And the wierding module. And the galactic spice dependency. And Duncan Idaho. And... (Sheesh, why don't I just list the whole book???
).