voice/acting coaches?

can anyone recommend a good voice (acting) coach in the melbourne area? i want to improve my breathing, projection, acting technique, etc, through weekly or fortnightly lessons - i just don't know of any good teachers.

also, if you've had a good experience with a voice teacher please also post a reply, even if you don't know of any in melbourne - i would also like to know what a good teacher is supposed to be like :)

thanks guys,

emma :)