Acronis(site info)
Technology leader in areas such as hard disk management, multi-boot technology, data migration, system backup and other core system areas.
http://www.acronis.co.uk/
Active SMART(site info)
A hard disk status analyzer and failure prediction software it uses S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) to monitor the health status of Hard Disk Drives (HDD). Supports ATA/IDE and SCSI interfaces.
http://www.ariolic.com/activesmart/index.html