Hi Mike this technology has been around for quite some time and is readily available in Australia. The EL sheets are available from some grapic arts places or from wholesalers who nearly all sell to the general public. Google "Electro luminecent sheet"
The guff regarding the colour is a bit of a non requirement as flats are either converted to or kept as greyscale images so all that is required is an even light source. I have had one for a few years now and use a sheet of white perspex on one side as a diffuser and a sheet of ply on the other for strength.
I also belive you can now get a dimmed version where in the past you had to use a tuned inverter to lower the light output.
See:
http://www.iceinspace.com.au/forum/s...ad.php?t=37978