At least 5 copies, preferably 10, of your data.
Stored in at least one additional offsite location
Would  span at least 3 months
With the restores tested regularly.


“It is not the things we do in life that we regret on our death bed.
It is the things we do not ”- Randy Pausch (source: http://en.wikiquote.org/wiki/Randy_Pausch )