Hi amitgupte,
I am now in the stage where I have (1) received sponsorship from a state government, (2) submitted the visa application (paid lots of $$$$) and have my TRN number. While waiting for a final decision, we've done our medicals. I have also gathered the three police certificates - took me approx 3 weeks to get these. I would be hapy to send the certificates now but not sure exactly where as there are two offices involved I believe - Adelaide (address on my visa application confirmation) and Sydney (the main office). Probably I would risk loosing time sending the police checks to the wrong office so will sit and wait paitently - biting my and my family members nails from time to time