I believe enroute fees are only charged for IFR flights, since they require a greater workload for the controller.
Landing charges depend on the airport, and can usually be obtained either in ERSA, Country Airport guide, or by calling the people responsible for the airport (could be local counsel, private owners etc).
For en route and Airservices Australia charges, see
http://www.airservicesaustralia.com/...ct_oct2010.pdf