Most agree this is better at Network streaming of media files than the Apple TV and Roku. Has most of the useful apps like Hulu and Netflix. Also, some reports (e.g on UnblockUS) suggest that the current non-US WD TV cannot be configured to play Netflix, Hulu Plus, etc due to the lack of a 'DRM chip'. This is anyway slightly cheaper than Officerworks ($119)
Refurbished unit: http://www.amazon.com/gp/product/B00D79AQ14/ref=ox_sc_act_ti…
The powersupply is 110-230v as per documentation on the US WD website.
Add the cost of an Aust-US AC converter plug and possible future warranty issues and it's just not worth it.