The website has them listed at $24.99 (http://www.toysrus.com.au/w1/i3626740/)
But I went into my local store [Kotara] and saw these advertised at $19.99 along with a notice that if you have a VIP Club card you got 20% off these figures.
I asked a staff member to verify whether it's 20% off and the discounted price is $19.99 or if the VIP club discounts the $19.99. He said his interpretation was the latter.
To get this price you'll need a VIP Club membership which is free to join at the registers.
Not too bad if you're feeling nostalgic!
Try your local Woolworths - standard shelf price is $16 but I only paid $6 (it was in-store special at MacArthur Central, Brisbane)
They are also listed in there website for $16.13 - check here
I also saw them at BigW for ~$15 but can't find them online