I'm a slightly obsessive Lord of the Rings fan so I don't want to write too much about it. It's sacred. I will say, my roommate and I watched the extended edition and I'm always shocked that Saruman's death and the Mouth of Sauron didn't make it to the theatrical cut. Those scenes are both amazing and the mouth, especially, is so uniquely creepy, it's too bad that not everyone has seen it.
If you've never seen the mouth - check it out.