Newegg offers the Seagate 500GB USB 2.0 / eSATA DVR Expander, model no. STAP500403, for $29.99. Apply coupon code "VMEMADNESS" and checkout via V.me by Visa to cut it to $26.99. With free shipping, that's $8 under our January mention and the lowest total price we've seen. It's compatible with most DVR models. Deal ends March 31.