>Standard is *likely* OK, unless you are doing something else beyond Standard licensing.
>
>But what you described, in itself, is not a requirement for Enterprise

Other than that, we have Active Directory domain service accounts for data importing and Simpana for backups.

Also, when I read the documentation, if someone is likely to need a licence for more than 2.5 years, it seems better to purchase the full licence as is instead of going through a yearly subscription.