G'Day Adrian,
I'm in Oberon which is an hour and a bit away. I know Simon (Thiink) is in Bathurst which is prabably only half an hour or so from Orange. I haven't picked up on anyone else in Orange yet, but that doesn't mean much!
Centaurus Astro Society is in Bathurst. I haven't got there yet to meet them, but that needn't stop you. They meet at the Bathurst Observatory. I think the details are in Astronomy 2006.
Al.