Hi Vanessa, I to live in Australia and the price of fabric is unreal. A friend put me onto www.hancocks-paducah.com and if you register with them they send you email with specials etc. Also about every 3 months or so they have free shipping internationally if you spend over $75-00 US. The free shipping only lasts a few days so what I do is look at things I want when I have time and add them to my "wish list" you can then send your wish list to a friend or they can send theirs to you so you can put in a combined order.
Their quality is great and their prices are from $2-98 per yard whick is great for fabric to use as backing and their good stuff is around $12-00 per yard, they will even ship batting and it's a great price.
I do support my LQS when I can but if I had to buy everything from there I wouldn't be quilting.