Thanks- these are very interesting links.

BTW- I got Poser 6 ONLY because of Olivier's Art Materials- just for doing Toon EFX- and then I just got Carrara 5- because of the DAZ Sale- and THEN discovered the Toon and NPR effects that Carrara offers- wishing that I had gotten Carrara FIRST- as I really don't like using the P6 Material Room (which is where ShaderWorks was a big help...)

I brought up ShaderWorks because it applies the Art Materials to a Poser scene in a generally "one click" setup. Of course the built-in Toon effects in Carrara 5 do this as a "post effect", which is even easier! There are a few things that Art Materials does that I can't yet see how TOON PRO can do them- but I would certainly like to see more threads and discussions about this topic as I am really very interested in Toon and NPR EFX...