Yeah - I was thinking that... The consideration is costs, especially as you need to register with Cycling Australia and get a license for these events (well, most of them anyway from what I understand).
I would like to do some of the more local ones too, but I was thinking:
Tour de Hills (2014)
Loop the lake (Lake Macquarie) (2013)
Amy Gillette Grand Fondo (2014)
Bupa Challenge (Santos) Tour (2014, now)
Three Peaks Tour (2014)
First thing to do, though, is generate the $ for a nice carbon bike

Pain is weakness leaving the body.