MSY are having a promotion on the Western Digital 3TB Elements External HDD starting tomorrow and ending Thursday.
Cheapest price I could find via Staticice was $139 which is more than MSY normal selling price of $129.
EDIT: Redid the search on Staticice as some companies use WD instead of Western Digital and this is still the lowest price around.
However if you can find stock at an OW you can price match but the model numbers seem to be different on the website although the picture are the same, so you may want to check the model number on the shelf before hand. Link to OW - http://www.officeworks.com.au/shop/officeworks/western-digit…
EDIT: Just did a quick search on the web and it seems that these drives have a 3TB WD Green drive inside, however I couldn't find info on whether you can pull them apart or not.
EDIT: Thanks liamk135, it seems like you can pull them apart.
I have bought one of these exact models from MSY about 3-4 months ago. Took it apart and put the 3TB WD green hard drive into my computer and it has worked perfectly.