The price of US$1500 has already appeared on B&H. As for the A$ thing, you should know by now that electronic goods in Oz is very expensive (about +20% to +50% compared to SG), and the price should include their 10% GST while the US$ price does not.
And yes, the price of D60s are free falling right now. My guess is S$1700-S$2000. After all, why would you pay a lot more for any older, less capable 1+ year old camera, when the newer one is less than S$3k (my guess is S$2999)?