Amazon has the Western Digital WDXB2500JBRNN 250 GB USB 2.0/Firewire External hard drive with Dual Option Backup (?) for $99.99 with free shipping.

CompUSA has the Hitachi Deskstar 7K250 250GB H3250B72P hard drive for $59.99 after a $40 mail in rebate. Available online or in store.

Newegg has the Western Digital Passport 120GB 2.5″ External hard drive for $129.99 with $6.34 shipping.

Buy.com has the Iomega Silver Series 320GB Hi Speed USB 2.0 External Hard Drive for $119.99 after a $20 mail in rebate. Free shipping.

CompUSA.com has the Western Digital Caviar WD5000KSRTL SE16 SATA 500GB hard drive for $199.99 after a $30 mail in rebate. Free shipping.

Circuit City has the Western Digital Caviar SE Internal 320 GB ATA/100 Hard Drive WD3200JBRTL for $89.99 after a $60 mail in rebate. In store pickup only.

TigerDirect has the Western Digital 250GB 7200 8MB cache USB 2.0/FireWire external hard drive WDXB2500JBRNN for $99.99 with 7.99 shipping.

Outpost.com has the Maxtor 300GB L01S300 16MB cache Serial ATA Retail Hard Drive Kit for $79.99 with free shipping. 1 Year warranty.

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.

Outpost.com has the Maxtor MXT L01R500 500GB Ultra ATA/133 7200 RPM 16 MB Cache hard drive for $179.00 with free shipping. Limit 2.