2TB USB 3.0 bus-powered drive - $129 shipped

[Kaido]

Newegg:

http://www.newegg.com/Product/Produc...82E16822149437

Amazon:

http://www.amazon.com/Toshiba-Canvio...dp/B00ARJD56K/

 

[DaveSimmons]

Be sure to read the Amazon owner review before buying.

I really like not needing a wall-wart for USB drives, but right now 1 TB 2.5" seems to be the sweet and safe spot for that.