RGB Adapter

[ali1234]

Amiga RGB and SCART are electrically compatible with VGA, thus any VGA splitter or switchbox should work with the appropriate 23<->15 way adapters (which you can build yourself quite easily.)

Edit: even better use something like this, then you'll only need one non-standard cable: SCART plug to 1084.
http://79.170.44.82/euronetwork.co.uk/acatalog/Splitters_Scart_Splitter_Amplifier_2-way_20-1054.html