Sony Kiosk in Chatswood Westfield.
Grey and Black on sale for $649 (Grey is priced at $849 but they'll sell it for $649), if you get it in store you can book a half hour free lesson on how to use the camera if you're new. Sony website lists it on sale currently for $725 (for the body only) but the kiosk is definitely cheaper.
This comes with the kit lens.
Split 2 AMEX deals to get 2x $50 cashback! (if you do this it comes to net $549) and don't forget to TRS it if you're travelling