I think its fantastic that you have sent everything back and your referees have been contacted already. yipee how exciting! Now that your all done with forms and medical checks it's like Macks said... The wait from here can feel a bit tough because its just waiting for the call.... Are you located here in Vic? Some people wait a few weeks to be allocated some wait months, I personally waited 8 months but our office was understaffed at the time but as soon as we got the call the ball has been rolling nicely ever since so no complaints whatsoever.
I have everything crossed that your office has plenty of staff and your next in line for allocation. Then your only a handful of interviews away from being approved.
Keep us posted on your progress and feel free to pm any questions you may have.
Take care all