The Sydney Biennale this year will play host to a free street art festival Outpost Project at Cockatoo Island from November 4th until December 11th.
The festival is the largest of its kind in the Southern Hemisphere, and will feature over 100 local and international street artists and collectives. Its biggest drawcard is the exhibition of the private collection Oi You! which contains 23 works by the infamous Banksy. Other exhibiting artists include Faile, Swoon and Micallef as well as Melbourne's Miso and Just Another Agency's very own Beastman http://www.justanotheragency.com.au/_beastman.
...worth the plane ticket me thinks
Check out these sites for more info: