Is there a requirement for offsite storage? If not (and even if so) you may want to consider a HDD-based backup. The cost of a tape system is still pretty expensive in comparison. By setting up a remote system that transfers data over the N/W at appropriate intervals you should be able to automate scripted backups...
I don't know. I've never had to create such a setup but I've always favored HDD-based backup systems over tape for the past few years primarily for cost and reliability reasons...I could be totally out of my mind and completely uninformed.
well technically its not considered backup, which is hard media
and there maybe provisions in the law regarding the level of backup required
of course depending on the business (most areent effected)
which might be why tape
the other consideration, just awhole lot more fragile
especially when mobile