Hi Jim Banner, I have 4 regulated power supply,s,running from 3-12volts at 2.5 amps,0-14volts at 5 amps,i have also many computor power supply,s at + 3.3v+5v and +12volts at 16amps ,its a shame not to use these,can they be used for lights or anything else on the layout,Ihave a medium size layout 7mtr by 5mtrs,HO DCC,although i live in Germany {an exiled Brit} i am running my layout as the US system but with european DCC control system from ROCO,90% of my trains are US steam with some european vintage steam loco,s, +5 mainline Diesels and 3 shuntersAll rolling stock are US.Iam running 4 mainlines plus 2 turntables 12turnoffs and a village with a reversing trolly sys from Bachmann as are most of my trains and rolling stock,Ihave just recieved 20 wagens with coal load from bachmann shop although i have to change the wheels and couplings which is still cheaper than rolling stock here in Germany.Greetings to all,Bryan