Queens Birthday Weekenders

While Australian chess tends to come together over Easter for the Doeberl Cup (with the exception of minor events in Queensland and Western Australia), the Queens Birthday Weekend in June is almost the complete opposite. New South Wales, Victoria, Queensland, South Australia and Tasmania all take the opportunity to run their own chess events. With Western Australia holding their Foundation Day event the weekend before, it is only the ACT that keeps this time of year free of weekender chess.
The two big events are the NSW Open and the Victorian Open. Both events attract a strong field from their own constituencies, although the NSW event is benefiting from an influx of ACT players. Top seed at this stage is IM David Smerdon (from Canberra of course).
The top seed for the Victorian Open is current Melbourne resident, GM Gawain Jones. There is also a strong collection of IM's, with Stephen Solomon making the trip from Queensland to play in the event.
If you want to catch the results from these events (at least after they've been completed) then the Yulgilbar-Think Big Grand Prix page is probably the best resource.