http://stores.ebay.com/CROWSNESTQUILTINGFABRICS on eBay will ship to Australia. I contacted them about postage for a jelly roll and they offered to undo the jelly roll so it would fit into an envelope and reduce the postage cost. Now that's what I call service.
I recently bought a half square triangle ruler from
http://stores.ebay.com.au/Gotta-Notion It arrived in just over a week. I couldn't believe it. Don't think they do fabric, but wanted to get the word out as I was very happy with my purchase.
Good luck and let us know how you go.