I had a rather interesting one about a year or so ago. I remember it quite well, as it is one of the only two dreams I've ever had that involved more of my seneses than sight and sound. Not to mention being in general the second most vivid dream I've ever experienced.
I was basically in some sort of concentration camp filled with transformed people, obviously being run by some crazy scientists with REALLY high technology. Robot guards and such forth. For the first half of the dream I was some sort of amphibious mer-creature, capable of dragging my self along the wet grass inbetween several massive pools in the camp with my arms. I was really enjoying the swimming though. I can't exactly remember how, but about half way through the dream I was transformed into a dragon hybrid somehow.
Obviously, I managed to escape, and most of the rest of the dream was basically a chase/battle between myself and a gargantuan flying robotic saucer through a barren mountain range. I had fire breath, it had lasers, there was much awesomeness.
At the very end it started getting kinda wierd... for some reason, there was a giant peanut butter machine on top of one of the mountains. I could SMELL the freaking peanut butter in this dream. I basically ended up hiding inside it and sneak-attacking the saucer to destroy it.
And then I woke up, which was too bad. I was enjoying being a half-dragon.
