Today only, TigerDirect has an ADATA 1TB Portable HD + Total Defense Security Bundle for only $29.99 after rebate. Shipping is around $4. The same 2 items sell for around $80 after rebate at Newegg.

This portable external drive features a USB 3.0 interface with a lifetime limited warranty through ADATA according to TigerDirect. (This may be incorrect information. It would be extremely unusual for such a warranty on a hard drive. Amazon lists a 3-year warranty.)

Note: The Total Defense Premium Internet Security product coverage is different from most other security products.  After the initial 1-year coverage (included in the price), you are billed each month for continuing coverage for up to 5 devices.