[mook]

I use 110 lb. cardstock in my inkjet printer for tri-fold figures, and it's certainly "good enough."

But if you're looking to print things onto chipboard as heavy as the Ogre/DFRPG figs, my suggestion would be adhesive printer paper. Print what you want, cut it out, peel the backing, stick it on. (Or, ya know, old school -- just print what you want on regular paper and use a glue stick. Either way, gamer arts and crafts time!)