Mighty Muggs @ Toys R' Us on sale today.
The new Transformers range is out, and they're currently Buy on Get one free, at $24.95each.
Cheapest online you'll find them individually is about $20.
Also worth noting that if you spend more than $100 on Transformers product, you get the Transfomers Voyager valued at $49.95.
Not bad for a new range! I can confirm that Bankstown Toys R' Us have the full rage and plenty in stock - picked up all four myself!
All other stores should have plenty of stock since its completely new stock to coincide with the new movie/catalouge.