How many things have you got to plug in then.......
Can you not just daisy chain them together........??
I have only got 1 RGB scart on mine, but i have 3 things going to that.
Scart 2 should be S-Vid and is not far behind RGB..............infact i prefer the pastel colours of S-Vid to the bright RGB colour and if you have a A/V amp, you will be able to switch most stuff via that.
I have a further 4 things going through the amp on S-Vid and the VCR on Scart 3 S-Vid.