For a brief general overview about the origins as well as the contemporary nature of Anabaptist Mennonites (though admittedly with a mostly North American focus in this video) go here.
So how about Australia – are there Mennonite churches in this country? Well, the short answer is no, Mennonites like me, living in Australia, are far and few between. But people who have adopted an Anabaptist theology and vision for life for themselves in this region of the world are most likely to be involved as members in all sorts of other denominations or religious groups – but, hey, we do have a vibrant network of communication and support! Check it out here