I used EnLAN DFS for years. It was transparent peer-to-peer, got a few upgrades, had good admin features, was easy to set up and worked like a charm - never a crash or deadlock. It was close to having QNX's qnet; very transparent. If I ever get the chance I'll try it on MorphOS.
On the side I was running some Aminet ParNET improvement, forgot the name, between one of the two Amigas and CDTV. It was a pretty cool way to have it all.