I use 6 or 7 computer power supplies all around the Choo Choo Barn layout. I have all of my lighting, etc. going into a terminal strip so all I have to do is replace the supply and hook up the power leads, a 10 minute job. I have 5 spares with spade connectors already attached to the wires waiting to be used. They don't last forever but they last a long time. Mine are on 8 hours a day, seven days a week.
Thanks to gunrunnerjohn for the tutorial.
