A fellow Aussie who was frustrated at the difficulty in finding other gamers has started up a forum for just this purpose. He's also started up an IRC channel for it connected to the site.
You can find the Australian RPG Dungeon at the following address:
http://www.rpg-dungeon.com/
The IRC channel can be joined by pointing your IRC client to irc.moofspeak.net and joining #arpg
You can find the Australian RPG Dungeon at the following address:
http://www.rpg-dungeon.com/
The IRC channel can be joined by pointing your IRC client to irc.moofspeak.net and joining #arpg