The last I checked Australian customs agency allows up to $1000 AUD into the country duty-free. For peace of mind, please refer to the official Australian Customs Service Website. This link will take you directly to the page that answers most of your questions!
Our standard shipping method to AU is first class mail (7-21 days). We currently charge $13 for this service and offer priority mail for $33 (4-10 days) and express mail (3-5 days) for $49. See our shipping policies for complete details).
Feel free to call me, Aaron, at any time with any questions! Believe it or not we have several hundred Australian repeat customers and enjoy working with all you blokes 🙂