Hi captain,
As usual Ditzyboy has come up with the goods, clever little cherub!
You might also like to take a look at
www.realestate.com.au and click on Rental Properties and then do a general search for Sydney or search by suburb to give you an indication of what the market is like. Your pay if you get in will be more than you are earning now so look at it like an equalisation and the rent won't hurt that much... I hope.
Good luck with the application and the move in the future.