Distributed Mind

I would like to put together a network of some really old technology. Good technology (286s are icky compared to 386s, even though they are weaker) but weak technology. I am thinking nothing more powerful than a 386. I would like to put some old 16 bits on it, like an Amiga 500 or 600, or maybe a 2000. I would definitely like some 8 bit systems: e.g. an updated Commodore 64, or maybe on of the newer 8 bit systems. Maybe make an old PDA a server or something - that one would be really twisted. It has to be actually networked, so the C64, for example, would have to be running an "advanced OS," not the 64 ROM, but such things do exist. Maybe throw some really old Unix-type systems on there, like an old Sun, or something. Something on it has to have NetBSD. I think it would be fun, and it would be an interesting experiment. Most of all, I would like to see how useful it could actually be for end users. What do you really need to be productive? (Of course, we could answer that question by putting together a bunch of NetBSD machines in concole mode, but that is too mainstream.)