I was visiting the Brisbane Planetarium's website and this add caught my attention. It looks like the Lord Mayor's Photographic Awards are open to all Australian residents.
$10,000 for winning the open category!
Here is a link to the terms and conditions:
www.lmpa.brisbane.qld.gov.au/node/2
This is way out of my league but I can rattle of the names off some IIS members who should be in this competition.