The only safe, tried and true, backups are those done with file based backups that verify by comparing files when backing up. For desktop use, Retrospect may be best. I would not count on programs such as Ghost or TI for incremental backups. Ghost 10 has a shoddy implementation, and TI 9 is still too buggy. I described the incremental backup issue for Ghost 10 elsewhere in this thread. Ghost 10 might be fine if all you want to do is independent recovery sets, but many/most folkes really do need incremental backups.