6/15/2008: Metalfinishing Videos
I happened upon these videos on youtube. The technique this guy is demonstrating is the same as what I have used on my car.
I also came across a video on lead work. My car was built by with a lot of lead filler, so I might actually do some of this later on. My understanding is that it works better than plastic fillers on areas that might flex or where you need a lot of build-up.