And make sure you have some sort of coverage in the event that your data is lost! This can be due to theft, fire, disaster, computer crash etc. There are costs involved with re-entering data or retrieving data!
Our business insurance (in California if that makes any difference) has a section that covers the costs of retrieving data. I'm responsible for the back up, but it pays for the replacement software and a certain dollar amount ($10k) if we have to pay a technician to retrieve anything that's retrievable.
The average coverage for our type of business is 2-3 Million, you can expect to pay anywhere from $900-$3000 a year (just a guess and of course it will vary)