As the other member said fabric is expensive here in Australia. Check out the classifieds on this board but also look on ebay and Google Quilt fabric. Don't know if you have a Spotlight Store near you. Not 100% sure but think someone told me there is one in Maitland.
Some are better than others with sales but they are getting more expensive. I get most of my fabric from America these days. Even with postage it works out cheaper.
Quite often members will put links up for sales.