Terri, I am very happy for you. My son was in Brisbane and Sydney in the summer of 2008. He was 14 at the time and went with a group called People to People. It was the first time he went anywhere without us. He also went to New Zealand and his favorite part was meeting the Maoris.
Make sure you have your picture taken with a Koala. We treasure his picture. I know there are probably tons of places to do that.
You may not want to go to a shop because of their prices, but they have a completely different concept when it comes to art quilts. I have seen many in the Down Under Quilts magazine, and would love to see some of those in person. They are incredible.
Have a great time.
Maria