It was the Bendix-King items I was thiking of and that I'd seen mentioned a few times. I've just never flown with them and hadn't really grasped when you would want to/need to synthesise a 'ghost' VOR.
I suppose if the a/c has a Garmin 430 in it, that'll do all of that plus more, as you said, for flight planning via airways intersections, the 430 would have them all too.
Cheers anyway.