Seagate just updated their BlackArmor line with three units, a 220 NAS that holds up to 4TB, a WS 100 external drive with eSATA and USB 2.0, and a PS 110 portable drive that holds up to 500GB.
Their availability and pricing:
• Available now, Seagate BlackArmor WS 110—$159.99 for 1TB and $309.99 for 2TB
• Available now, Seagate BlackArmor PS 110—$159.99 for 500GB
The BlackArmor NAS seems interesting to me, just because I'm a big fan of network storage that your entire house can access. Is that $450 and $700 price going to be affordable when you can get simiarly-sized NASes (and Windows Home Servers) for cheaper? It depends on what kind of security/backup/restore software Seagate bundles in.