Geno,
As a recent convert to BD I am having similar experiences with some movies (old player was a Denon 2910). However, I wasn't immediately wowed by the BD movies until I rewatched the SD versions. Its not a night and day difference, but there is definately a nice increase in clarity. And I'm finding, as many others have mentioned, that some movies are better/worse than others.
If you haven't done so, try re-calibrating your tv to the new player. I prefer what I'm seeing on BD and the sound is much nicer, IMO. However, if you already have been using higher quality components, the increase may not be as huge for you as for others who are just stepping up to that level.
I'm using a 52" lcd and im about 7.5' back. If I stand right behind the couch, about a foot boack, the clarity on some movies improves dramatically. (moving the couch is not likely with my room layout.) That said, again, I would rather have BD than SD for newer movies. I've still been buying older ones on SD, they're cheaper and the pq difference doesn't seem as noticeable as with newer movies.
Jack