OK, seems the concensus on visibility (brightness) is:
blue>smoke=green>amber>>red

Beaker, where does your OHP idea fit into this equation in terms of visibility and the 3 other criteria?
2) color - OHP can print any dang color. I'm assuming the lighter the screen color, the closer the text color will be to the natural greenish color of the VFD. (Remember I'm trying to match the red instrumentation of my dash.)
3) Glare - Based mainly on how shiny or matte the top surface of the screen. Some have suggested using 600 grit sandpaper, sandblasting, or some AR coating.
4) VFD reflection - direct sunlight being reflected by the unlit portions of the VFD display. Problem mainly experienced in sunny California; not ready to move to the UK (althought the customer service is better there, I hear). arrreerrrr, different thread....

Beaker, how do you attach you OHP film? Do you use a clear plastic lens? Does it have a matte finish? Do you mount it outside of inside of the lens? Does Macromedia Freehand work with your Corel 5.0 files?

--Andrew