jamanda: After much googling and price comparisoning - the cheapest available in AUS minus the 15% GST works out as only $100 cheaper than buying one here at normal price coz the exchange rate isn't too hot. So I might do some more digging over here first to see what's what with duty free. I'm sure parallel imported or one of those offered me a duty free option on a camera a few years ago when flying to the UK.
gst in oz is 10%
divide price by 11 and that's the portion of gst