The most important aspect of a backup solution is that it happens automatically. People simply just do not perform manual data backups on a regular basis. I always install a tape drive and hope that they change tapes every day. I use Veritas Backup Exec and while the white paper says you can't restore individual files, he is wrong. I also create a disaster recovery set which significantly reduces downtime. I set the backup to occur after hours and speed isn't a big issue.