I think it would definitely work............if it works for Game consoles.then it works for Amiga............but I recommend using S-Video.............and the only Amiga with that is CDTV and CD32.....but if you connect a Genlock like the SuperGen SX, it gives you S-Video OUT. But with a genlock connected, you cant switch to PAL if the genlock is NTSC or Vice Versa.
S-Video looks almost as good as RGB on a 1084s so it should look pretty good on a VGA me thinks :-)