I tinker with my SIII LandRover a bit but mostly....
I have a medium sized collection of Acorn computers the from BBC B and Master 128 through to the Archimedes A410/1 and a BBC Acorn A3000 all networked via an Econet... The A410/1 also has Ethernet so I effectively have an Econet to Ethernet bridge too.
My Amiga A1200 has Ethernet as well so it's a fully homogenised network with Acorn, Amiga, PC compatibles, Nintendo Wii and a heap load of modern kit like Blu-ray players and Internet TV's all connected on a 1Gbps backbone with a few TB of NAS storage for everything to be archived to.
When I decorated the house a couple of years ago, I re-wired completely and installed CAT-6 Ethernet in the walls so all the networking throughout the house is wired but "invisible" up to the wall sockets.
That little lot tends to keep me busy

Paul