Circuity City has the 160 GB IDE Seagate 7200 RPM 8 MB cache retail hard drive kit for $84.99 – 40 MIR = $44.99.

TigerDirect has the Seagate 160GB 7200 8MB SATA-300 OEM Hard Drive ST3160812AS for $19.97 after a $40 mail in rebate. $7 shipping. Link to Rebate.

Office Depot has the Western Digital My Book External 160GB USB 2.0 8 MB Cache Hard Drive for $79.99 after a $50 mail in rebate. Free shipping.