I have two lighting circuits in a TV room I want to control with a T3 system. What's the simplest and cheapest option without resorting to anything nasty like X10. I have an RP6 located fairly close to the two lighting switches so I could use RS232 or an IR repeater if needed.

One circuit is a single switch with a handful of cans (<400w) and the other is a two way circuit with a second switch and about the same load.

Thanks

Morph