Well after too many hours searching and not doing enough work, I think I've found the only software which does this on the mac: Kinsky
I don't know if this will help anyone, and it's certainly not a perfect solution, but it will have to do for now! I don't know why there isn't more choice. In the days when nearly everything in the home can be connected, why isn't there software to control these items!
I hope this helps somebody!