Saver Delivery (usually 6-10 business days) - A$15.99 on orders under A$82.02, orders over this use "Standard Tracked Delivery" (below).
Standard Tracked Delivery (usually 3-5 business days) - A$8.10 on orders over A$246.06 (otherwise A$13.33, or A$20.09 on orders under A$82.02)
Express Courier Delivery (1-3 business days) - A$63.56 on orders under A$276.81, otherwise A$84.07
Prices may vary by a very small amount in the checkout (usually cheaper!)