or does it have to be made by you ?
Indeed, I prefer to use comparison videos/screenshots of my own.
I have a comparison video for PS2, but it was made for early Beta, and is not fully valid now
http://www.youtube.com/watch?v=lcJlTUgZTT8Moreover, I've heard that there be a second batch of PhysX effects coming to PS2 in the future, so I'll likely wait till that