PlayStation has revealed that the PS4 Slim will be available in both a 500gb model and 1TB model in Australia. The 500gb model will retail for $439 AUD and release on September 16th, whilst the 1TB model will retail for $509 AUD and release on September 29th.
For comparison, you can currently get a 500gb PS4 for $428 from EB Games.
The slimmer model is exactly as pictured in the leaks over the past few weeks. It has an almost entirely matte finish with rounded corners.