The Performa/PowerMac 5200/6200 and 5300/6300 are also
definitely NuBus based even though they don't have a NuBus slot.
 From memory, all Performa's with the exception of one (I think
either the 6400 or 6500 was PCI) were NuBus based machines.

I actually own a 6200 and would quite like getting NetBSD
to boot on it, but I've never been able to find enough info
about the hardware on these machines to know what
additions/changes to make to the code.

Matt