AutoSync

Ever wanted to syncronize files across multiple computers, or to a server for backups? AutoSync will let you do just that.
Autosync uses WinSCP to transfer/sync files over sftp/ftps/ftp/scp with your server, and other computers running AutoSync.

The free version will automatically sync 1 folder. The Registration key is $2 and will unlock subfolder syncing.
- Download now Here
Purchase the key for $2:

Requirements:
    - Windows (xp/vista/7)
    - WinSCP (included in download) or you can download it here .
    - .Net 4.0 here .
    - Some server to connect to: sftp/ftps/ftp/scp more info .