I'll also chime in for Jungledisk. I use it on 2 machines at home and a few at work (Windows Vista, Server 2003). The cost and security is really nice.
Jungledisk Plus gives you the option to view files online - so it's a backup + online viewing option (since it uses Amazon S3 and is already online).
Jungledisk Plus gives you the option to view files online - so it's a backup + online viewing option (since it uses Amazon S3 and is already online).