Cheapest price you will get this considering our low Aussie dollar. Dont think you can get it at this price anywhere in the world even
$150.68 USD Delivered after discount = ~$221 AUD delivered and i have taken into account the 3% currency conversion fees (paying in $US).
There's a 4tb from Dick Smith for $153.30 AUD at the moment.. An extra $70 is quite a premium for a usb powered drive