Dyson DC44 Animal Vacuum Cleaner for $459.90 delivered from oo.com.au
This is about as good as your going to get on this model at the moment. oo.com.au have this model out on 24 deal and you'd save somewhere in the region of $10 to $50 off the prices through most other stores.
The deal ends tomorrow at 10.00am. The base price on oo.com.au is $449.95 with delivery $9.95. Its a good bit cheaper on Amazon.com and Amazon.co.uk but they wont ship it to Australia so that option is out unless you have a mail forwarding service setup. Its a shame that there are no active oo.com.au promo codes at the moment.