Johnny Appleseed GPS has a 2 for one deal on the new Garmin Rino 650 GPS/UHF. I bought a set the other day as a Christmas pressie to myself. Has the features of my GPSMap 60csx in an easy to use touch screen package and a 5W UHF radio. Just saved myself carrying a radio as well as a GPS in future and with the two for one deal, they are only about $300 each - same price as a GPSMap 60csx purchased from the USA. You can load Shonky Maps and Tracks for Australia onto the Rhino which is what I will use.
http://www.ja-gps.com.au/Garmin/rino-650-gps-uhf-radio/