My favorite shoes in the whole world are the Brooks Defyance. I'm currently rotating through my 15th, 16th and 17th pair of these comfy little critters. I've ran all kinds of terrain with absolutely no foot pain in them. It was almost like a shoe designed specifically for me.
So, I came across these two videos made by Brooks while reading Donald's blog: Running and Rambling. He does a lot of product reviews and he's excellent at it. Well worth adding to your RSS feed.
Both videos are worth the few minutes.