2 RGB outputs...

 I think, provided you don't need to be able to view any one of the three sources on either output at the same time, that this might do the trick, in that it has four Scart ins and two outputs for about £60.

Or from the same brand you could use one of these and one of these to give you four in/four out capability for about £70 all-in. 

Thanks for the reply. 

I already have a device for scart I/O. I need one that has 3 Red, Green, Blue inputs and two RGB outputs.

 On standard phono sockets?

Yes. I have found AV recievers with three RGB inputs but only one output. I have three devices on RGB (DVD, 360, PC) and I want all three to output to my TV using RGB and to my projector using RGB.

Does that make sense?
 

When you mentioned RGB I automatically assumed you meant RGB video signals and thus Scarts. I think we're talking component video, on red/blue/green plugs.

This will do it, for about £125 delivered in the UK. 4 in, 2 out, with pushbuttons on the front panel and remote control.