Ol gil here, went to The Good Guys at O Connor (Western Australia) and saw this Tom Tom via 160 for $72. It was the last one, im assuming its because they have the New Tom Tom via 260 which is pretty much identical to the 160 but bigger model number.
the Tom Tom via 160 has
bluetooth handsfree
and Voice recognition
and to add i see the Tom Tom via 160 is part of the lifetime maps promotion which expires on the 30th of June 2013. http://www.tomtompromotion.com/maps/AU
lifetime maps is useful. I have an older TomTom, and buying new maps is about as much as a new unit, yet quite essential.
I must say that the map update process (for user contributed updates) on TomTom is very painful, and I have required my IT skills to fix up the issues. Not sure if other people have been more lucky.