I missed out on the previous deal for the twin camera pack for $280, so have been keeping an eye out for something similar.
While this 20% off sale brings the twin pack to $320, as you go to the 3 ($440) and then 4 pack ($560) the per camera price slides down to ~$140/camera. Free shipping, too. Perfect if you need a number of cameras. Hope that helps some other OzBargainers looking for a similar solution! Cheaper than Arlo and other similar solutions!