GoodSync for Mac

GoodSync for Mac is an easy and reliable file backup and file synchronization software. It automatically analyzes, synchronizes, and backs up your emails, precious family photos, contacts, MP3s, financial documents, iTunes, and other important files locally - between desktops, laptops, servers, external drives, and mobile devices, as well as remotely with FTP, SFTP, WebDAV (including MobileMe), Amazon S3 cloud storage.