First of all, a huge thank you to Trude, she told me about this! :)
The DVD is avalaible for pre-order and it's quite cheap, so go ahead and make sure you get is ASAP! :)
From the site:
Price: $29.99 (Aus)
Release date: February 23rd, 2011
Interesting to note that they list Universal Pictures as the studio.
The New Zealand store: http://www.mightyape.co.nz/product/DVD/The-Clinic/9986578/
Their price: $35.99 (NZ)
And for Region 2, visit Play.com! It's not avalaible yet but you can enter your email address to get a notification as soon as it will be.
There's a short review too from markandwendy:
"Saw this at Frightfest, and it is a great suspense-packed film. Would recommend it."
If you're not in the UK, check if they deliver to your country: http://www.play.com/Help.html?page=del
No information about special features yet, I'll try to find out more.