The best I have been to in Australia and which is in my home town of Brisbane
is Cha Cha Char ....

They treat the menu like a wine list... describing exactly where each cut has come from and whether it is grain or grass fed.

http://www.chachachar.com.au/

I would eat there every week if my arteries could handle it.
Next time you are in Australia, make it a stop.

Cheers
IainF