Hi Paul
For figuring out what's visible I would strongly recommend looking at Astroplanner. Even just the freeware version if a very powerful utility to plan your viewing sessions.
To get an idea what's visible from the latitude of Brisbane, you could check out my Messier gallery too if interested:
https://picasaweb.google.com/UserRob...02105Possible#
From my calculations (and experience) 105 visible from here, and you're not that much further south are you? I must process and put up the final images for these too...