Good $/TB ratio on these external drives drives..
Use some 3% off coupons from places like Suncorp (or 2% shopback) even better.
|WD Elements 14TB||$345.23||$24.66||$23.92|
|Seagate Expansion STEB14000402 4TB||$329.81||$23.55||$22.85|
The Seagate has a longer delivery time (1-4 weeks) if you're after something in a hurry.
Please be aware of Amazon's dynamic pricing, when there's a surge in demand they typically increment prices on stock.
Note on Power Adapters: You'll probably get an American power adapter, so you'll need a converter or people have had success calling the vendor locally and them dispatching a plug. (If you are not shucking them) Some people mention you may get an international adapter on some models. Are you ready to roll the dice champion?
Personal experience, most recently Seagate Expansions of 12TB+ I've bought all came with international adapters. Can't vouch for WD.