Hi Will,
Welcome to IIS and I hope you get your scope up and running soon.
I'm from Brisbane and if you click on the Our Community link on the LHS of the page then you'll find a link to Clubs and Societies.
From there you'll find the Qld/Brisbane ones except for some strange reason the Brisbane Astronomical Society
http://www.bas.asn.au/
All the clubs have public viewing nights so I'm sure you'll find something to suit you.
I'm a member of the AAQ but BAS is on the northside so may be most convenient for you.
Ken.