Play Asia currently have Assassin's Creed II for Xbox 360 and PS3 at $64.72 each, plus $4.21 postage for 1 item. Both versions are region free, and will work on Australian consoles. Even including postage, this price is much cheaper than in stores here in Australia.
NOTE: Both versions will have some Chinese characters on the case (and possibly in the manual), but personally I could not care less.
this is awesome