http://www.amazon.com/gp/product/B00E6N9HEC?psc=1&redirect=true&ref_=od_aui_detailpages00
I just got this one on the warehouse deal for $63!!! Idk how it happened but it gave me the prime savings twice, cause when i first went to the checkout it was $77 and then i refreshed the cart and it gave me the savings twice so it came out to $63!
We've been using a WD 3TB My Book for Mac and it's been fantastic for us. We haven't used it to edit from, just for archiving finished projects--but the transfer speed for USB 3 is lightning fast.
On Amazon right now for $110: https://www.amazon.com/gp/product/B00E6N9HEC/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1