I watched the Extended Cut (only the second time I've seen the movie--once in theaters), and I didn't see much different. Certainly some of that is that I'm just not very familiar with the theatrical cut, but this didn't seem as bloody as I'd heard. I'll give some scenes of the theatrical cut another look, and see what changes I can spot.
Anyway, a neat movie!
We watched this because PSH's small amount of screen time is 100% awesome, but the whole thing is good. Very good.
I liked this a lot more now than I did the first time I saw it.
Be sure to watch the Mattress Man commercial on the second disc of the DVD if you can find it. I'm sure it's online somewhere, too.