Good general cancer information. While there is not much information on brain cancer, there was the interesting fact sheet for NSW:
http://www.cancerinstitute.org.au/cancer_inst/factsheets/pdfs/feb09_brain-cancer.rtf
Trends - from 1997-2006 overall incidence remained the same but mortality dropped 15.3% in NSW [excludes benign].
Projection - For 2008 there were 507 expected cases in NSW (464 in 2006), being the 16th most common cancer.
Interesting summary - I didn't think that the lifetime chance figures added up.