This year we're likely to be holding AusHac at a new venue, Atlassian's offices in central Sydney. (Google Maps link - http://tinyurl.com/AtlassianSyd)
Please get your responses back to us by Friday the 18th of May.
Some info to help with your choices:
July 6 - 8 is during the NSW public school holidays, so would be good for those with kids
July 20 - 22 is right after the July FP-Syd, so those wanting to do both could just stay an extra night.
I believe all these dates fall within the mid-year break for most universities