I'll keep adding more stuff to this list as I find it. 3D is just what I've done the most research on up till now. And not just 3D, but other useful art tools. Anyways, I hope that I can pass on to others the sampler platter I never had.
I was rather irked that some ambiguous generality had led me to think these things were futuristic, even unrealistic. When I taught myself papercrafting, over time I ended up with a collection of dozens of freeware studios of the sort that I only dreamed of paying hundreds of dollars for before.