Steve,
I'm the president of The Macarthur Astronomical Society based in Campbelltown.
We have two observing sites, one at The Oaks and the second in The Belanglo Forest, just south of Berrima.
They are both good dark skies, with The Forest site giving mag 7.5 skies (naked eye) in the cooler months. We also have access to a cabin, so we make a weekend out of it at New Moon.
Your most welcome to come along as my guest and check it out.
Go to
http://www.macastro.org.au/home/
and follow the links to Stargard & The Forest.