http://www.noelleeming.co.nz/games-gaming/playstation-3-ps3/playstation-3-games-ps3/playstation-3-rockband2p3sw-rock-band-2-s-w/prod106531.html
Noel leeming is selling Rockband 2 for ps3 for $19 till the 20th which is super cheap if you want to pick it up. Online ordering only.