Mwave offers the Toshiba Canvio Aerocast 1TB Wireless Portable Hard Drive, model no. HDTU110XKWC1, for $99 with free shipping. That's the lowest total price we could find by $21, outside of the price below. It features data transfer rates of up to 5Gb/s.
A close price: Newegg via eBay charges $99.99 with free shipping.