Darren - I'm trying not to get too far ahead of myself.... let me build my core first
But, yes, I've been looking for something that would work in Australia and was easily available here but compatible with LMCE. The Linux driver is what Dan (in Canada) is currently gearing up to write with Hari's help (in Austria I think, or possibly Germany with an Austrian email address!) So that seems already to be underway - hence I have been researching suppliers in Australia. But NOT X10! PLCBUS seems to be the closest fit yet, and with the weight of support from our European buddies, and Dan, we should be in a good position.
Have been talking with the MD from MOX in Australia, who have the PLCBUS products - he tried to sell me their complete HA solution, not understanding what I was doing. I turned it around and tried to sell back to him LMCE as a major value-add to their offerings!
He hasn't replied yet, I'll see how I go with the evangelising!
The only thing I see as an obvious drawback at this stage is the wall light switches seem to be quite different profiles from Australian ones, and with brick/concrete walls in a rental property that could present me with problems....