Just searching on Officeworks website and found the Nokia Lumia 520 @ Officeworks for $99.00.
Features
Colour: Black
Network:
* UMTS/HSDPA (850/2100)
* GSM/EDGE (850/900/1900/2100)
* HSPDA: 21 MbpsOperating System: Windows Phone 8
Specifications:
* 1Ghz Dual Core processor
* 5MP Camera
* 8GB on board memory, supports 32GB micro SD
* 4.0" Display screen
* 1GHz Dual Core Processor
* Advanced audio enhancements
* Talk Time: 576 minutes
* Standby Time: 360 hours
Does it mean its locked and unusable on other networks, such as Optus?