Hey WBM - I used Dr Bowman at Sydney IVF - although I didn't do IVF, I had assumed that was our next step (he was the one who monitored me on Clomid). He is absolutely brilliant, not easy to get into though. I also have another friend who used him for her successful IVF baby last year - and she raves about him. My sister used Dr Alison Ghee (from memory), she shares an office with Dr Bowman. She has had two successful pregnancies through SIVF.
FYI - I have a friend who used IVF Australia, although she did conceive I don't believe they are as good.
Good luck!