Im not a NetBSD user, but its always nice to see support for hardware for older systems.
I might give it a try on my a1200 one day. Being that Im not particularly familar with NetBSD can anyone tell me please if there's likely to be any issues on a pretty basic Amiga? Im using an a1200+40mhz'040+32meg fast, plus Etherlink III pcmcia nic.
I suspect there might be issue with your Etherlink card. The only PCMCIA network cards which are working reliably on NetBSD/amiga are NE2000-compatible cards (cards which are supported by cnet.device in AmigaOS).
All your other components should work well.