Officeworks - Swann DVR-4 Business Surveillance Kit $165.88 (was $999)
The two included cameras (the dvr can support up to four) can record (colour during the day, b&w in low light) to the hard drive for 332 hours (normal quality - less in higher quality) - so assuming they're set to record only on detection of movement, then that will be quite a few days worth. Can also connect it to a pc via the usb port to copy video to the pc hard drive....
Info here: http://www.swann.com.au/s/products/view/?product=541
Review here: http://www.goodgearguide.com.au/review/digital_video/swann-communications/dvr4_business_surveillance_kit/221291
Info from Officeworks:
The DVR-4 Business Surveillance Kit is a do-it-yourself safety and security solution. Cover every angle, Indoors & Outdoors, Day & Night. Once mounted, connect the cameras to any television or security monitor and record what the cameras see. With motion detection, a built-in 160GB hard drive, password protections and touch button navigation it has all the features needed to safeguard a business or home.
* Contents DVR4-Business with Accessories
* 160GB HDD fitted with Remote Control (batteries included)
* OutdoorCams x 2
* 60ft (18m) BNC Cables x2, BNC to RCA Adapters x 2, BNA to RCA Cable
* 4x Security Stickers
* Manual & Swann Security DVD.
Stock is limited, is available online only, and may not be available in all states..... only comes with two cameras, but then again at this price you can always get two kits.....