first of all sorry for my english 
made something like that for my home,
i live in argentina (220v here) and found some dimmer light-switches (capacitive ones) that got connection for a "slave" unit...
quick touch turns on/off
dimmers when holding....
closing the circuit between the slave and the Live wire works as pressing the key.... (mine is done with uln2803 and 5v relays)
got some pictures from my (up to now incomplete) setup attached,
charlie (again sorry for my grammatical murder :P)
