The PSU board is from Jay Car $74, you need the one with an extra "always live" socket if you intend on daisy chaining them for more than 4 outlets. There are cheaper ones $55 that have 4 outlets.
I wasn't sure if there would be some unknown effect by starting the computer and monitor at precisely the same time (like failure to boot) but it does work every time.
The Triple Disk Drive unit (made of heavy gauge steel) was manufactured here in Christchurch, Im not at home today but its written on the sticker, something about "foreman" Rd or electronics Christchurch, but will definitely let you know exactly when I can read the sticker. (there are some of those giant capacitors inside.)
The system 80 was from a deceased estate auction TradeMe (and local) and came with a boxed interface and another interface, it belonged to a guy that had a pharmacy here in ChCh, and it was his son who sold it who is a Doctor here in Chch.
The monitor is a Kaga green screen with a one of those plastic tinted filters in front ( so 70's / 80's )
The spectrum is cool, what you cant see is that you just take a spectrum (with or without a dead keyboard) and plug it into the rear connector and you get full travel keyboard and both types of joystick interface and a reset button and composite mod, the keyboard has a great tactile feel and definitely doesnt feel like carbon pads, ever seen a spectrum with a numeric keypad
Thats the Vidi-Ad monitor that sits above the BBC (duodrive left), I have since meet the guy that wrote the machine code ROM for the Vidi-Ad monitor (Ian Jenson) , but my Vidi-Ad has had the Z80 board removed ! It was interesting to meet Ian and learn a little about Vidi-Ad (he also gave me the source code to Vidi-Ad). Ian told me there where 2000 Vidi-Ad monitors produced, I believe this monitor is one of two remaining in the wild.
There is a VZ200 sitting between the System-80 and Spectrum (out of shot). There is a PC Tower under the VZ200 and a LED monitor and wireless keyboard and mouse above the VZ200, the PC is to provide Audio Wave File loading (even though I can actually load off cassette tapes, and I have a library of tapes for each in the table draws) and running emulators on etc.
There is another Table on the otherside (out of photo) with a Woz Limited edition GS and Apple 2 Europlus, the Woz and Europlus are expanded to the Max, I will probably put a IIc on that table also.
The Woz is Zip Chipped and Ram Factored and has a Hard Drive

I intend on making the setup more permanent, this is a mockup (with stacks of tapes on ends) to see how im going to get on with the layout, ie: how will they fit on the table etc.
There is still lots of work to put into it, I will probably add stereo PC speakers and a sub woofer to the Commodore128D and the BBC needs a volume control (it absolutely blasts your ears out at full volume), the spectrum needs stickers printed to put the keywords on the front edge of each key, and the system 80 wont boot strap off the floppy drive, but I believe the interfaces are dodgy (print fre produces inconsistent results).
Im considering on adding an on/off led and internal speaker/volume control to the spectrum.