Time Machine backup integrity?

Just wondering here if anyone knows how to check your Time Machine backups to ensure you have completely restorable data? I currently have two internal hard disks backing up daily onto a much larger FW800 external disk, and losing any of it would be a disaster.

I guess I want to be assured that if I use Disk Utility to restore a Time Machine backup there won't be any errors due to a corrupt backup. Is there any way check the integrity of the backups? If no, does anyone know of a better solution?

Honestly, if your data is that important you might want to add another backup strategy to go along with TM. I would use SuperDuper and TM if it was me. They are both fantastic and together they are bulletproof.