Amazon.com $1700: Infrant ReadyNAS NV, 1.6TB (4x 400GB Seagate Disks), RAID 5, 256MB memory
isn't cheap, but it's the first network addressable storage device to make an impact on the high end home market. With RAID 5 you get 1TB of storage, and one of the four drives can die without disrupting your work. Video editors, photo geeks, and hardcore home media zealots need this now.
I'd like to see Google sell something like this with built-in automated off-site backup. Buy the device from Google and it comes preconfigured with software and encryption services designed for Google off-site backup. Google makes money on the hardware and on the services. Users get reliable local storage (one drive can die without data loss) and offsite robust integrated backup services