I would suggest more of a full server backup option, combined with standard cPanel backups. As mentioned r1soft (now Idera) Server Backup is a good utility for that purpose, providing fast block-level backups at small intervals, online MySQL backups and allowing your cPanel accounts to perform restores themselves of their own individual files.
► Tim Benoit
► Stratus4, LLC | Est. 2008 | www.stratus4.com
► Virtual Data Centers (Cloud) | VPS Servers | Shared Web Hosting
► System Administration | Remote Backups