I have been looking around for these for a while. Wiggle don't seem to stock them. Eastbay stocks them but won't ship to Australia. Roadrunnersports, amazon, runningwarehouse are all in the same boat as Eastbay.
Does anyone know of a store that will ship Brooks to Australia?
Get them from http://www.runningcenters.com/default.aspx.
I just bought the Brooks Beast from them. They don't seem to ever have sales so don't wait for a discount, but the service and shipping time was excellent.
Sadly, very few places still ship Brooks shoes from overseas to Australia, so I recommend you get in while you can :)
PS - Running Center is a chain of stores in Southern California