Hi Tanager - This publication may be of interest. The Jazz Scene magazine is a free monthly publication giving details of jazz events in Adelaide (South Australia), Melbourne (Victoria), and Sydney (New South Wales) as well as Australian Jazz Festivals, CD and jazz concerts reviews. The circulation of over 4,500 copies (1500 in each city) is distributed throughout Adelaide, Melbourne and Sydney and to subscribers around Australia. It can be picked up from most places where jazz is performed as well as selected CD/Music shops and tourist information centres. You can check it out online at:
www.jazzscene.com.au
The magazine may focus a bit too much on Trad, New Orleans and mainstream jazz for your taste but there's also a thread called "Australian Jazz Korner" in the General Music Discussion forum over on the AAJ board with lots of commentary on the contemporary jazz scene in Oz which you might like to have a glance at.
Have a great time.