Sky
I can't help with the ob/gyn in sydney as I'm up in Newcastle. But i went to the local hospital gyn clinic. Why don't you ask your GP for the name of a good Gyn /Ob as they refer patients to them all the time or do what I did and go to the local hospital Gyn clinic (they are free or medicare funded).
I have recently been diagnosed with Ashermans. I haven't had a period since I had my m/c and d&c last Sept. I am still waiting for my historoscopy to see how bad the ashermans is (went on a 3 month waiting list last january and its now May)

I wish I could be more help.
Chris