this is bad ass! will get.
one other thing I'd like to see a tutorial on (because hell if I've seen one yet, maybe you guys can point me in the right direction) is shader networks. I always see these complex charts of squares and lines and have NO idea wtf I'm looking at. I know there's something similar (at least similar looking) in Maya but I'm primarily a max user. so yeah, those.
but this looks awesome, and all the eat3d tutorials so far have been ace!