Well, Martouf, what protocol is the standard in Australia? (I have absolutely no idea which one it is...) If it's PAL video and/or Region 2 DVD, then you can order from Blackstar with no problems. They have free global shipping, so you won't have to cough up an arm, leg, and kidney.
I don't know what the exchange rate is like, though. That might be the killer.
I don't know of any online stores based out of Australia, otherwise I'd offer links to that/those sites, too. (There might be some, but I don't know of them. Sorry!)