Zavvi have some pretty cheap DVD boxsets going on at the moment, so though I'd share a few I found (and bought myself!):
– Xena DVD 6-Season Collection for $40.77 AUD http://www.zavvi.com/dvd/xena-warrior-princess-the-ultimate-…)
X-Men Cerebro DVD 7-Movie Collection for $20.38 AUD (http://www.zavvi.com/dvd/x-men-the-cerebro-collection/110201…) sold out
– Avatar the Last Airbender DVD 3-Book Collection for $40.77 AUD (http://www.zavvi.com/dvd/avatar-the-last-airbender-the-compl…)
– Veronica Mars 3 Season Series + Film DVD collection for $40.77 AUD (http://www.zavvi.com/dvd/the-veronica-mars-collection-series…)
There's also the Futurama (http://www.zavvi.com/dvd/futurama-season-1-8/11061052.html) and Battlestar Galactica (http://www.zavvi.com/dvd/battlestar-galactica-the-complete-s…) deals that have been previously mentioned on here (https://www.ozbargain.com.au/node/228752 and https://www.ozbargain.com.au/node/227016 respectively).
They're all Region 2 as far as I can see so they should work ok. You might have to pay shipping, depending on how much you spend, but it's fairly cheap (and supposedly terrible – it's taken ages before, but I always received my orders in good condition. Buyer beware, I guess).
Max Power mentioned these codes below in the comments to make ti all even cheaper: Use code ZVC5 for extra 5% off. New customers can use code WELCOME to get 10% off.
why would you still get DVDs?