Buffalo Technology - and the LinkStation Live in particular - is a great Sonos add-on.

LinkStation Live & Sonos

LinkStation Live drives are the ideal add-on sale for the Sonos Digital Music System, helping reduce the amount of hard disk space used on your customer’s computer… and if this happens to be a laptop that is used for work and frequently on the move, the drive helps keep your customer’s music where it needs to be - at home! Plus, the LinkStation Live is a great portable solution for storage and backup, and features:

• Simplified file sharing on home or small office networks
• Easy 'driver-free' setup
• Seamless integration with iTunes® 7
• Built-in print server
• Built-in DLNA CERTIFIED™ server
• Data protection via access restriction