Recently there is a few in Australia according to the Lego club mails i just got from last year and they told me about some conventions and expos. BrickExpo is held at Canberra during mid time of the year Brickvention is going to be held at Melbourne Jan 21st & 22nd 2012.And last year the sunrise network on Australia talked about the art of the brick expo.
and it was in Melbourne last year and going to be held at sydney this year. that's all i know Even though i never went to these conventions i live far away from Canberra,Sydney and Melbourne but i live near a bit from Melbourne but i can't go cus dad has work and my mum has to do house jobs uhhgh