BigW - DJ Hero Bundle - $124
This bundle includes the game & the turtable controller. The next best I can see is $149 at Game.com.au
The game is getting good reviews, although it's not expected to do as well as Guitar Hero did at first. It's also ment to be quite tricky too so if you're thinking of kids Christmas presents have a read of some reviews first to see what you think. (See below)
The game is available on all formats.