The official release date for GB in Australia is November 18.
Just thought I would let the Aussies in these forums know.
Although that is the official date I went into my local Elecs Boutigue store and asked when they are getting it in and they said the 20th....so it also depends on which area you live in....
If you go to www.gamewarehouse.com.au) they have it being released on the 17th or 18th and its only $72 Australian....plus $6 postage and handling....thats cheap....(I do not work for gameswarehouse)