For those individuals already using WCM and iMIS, what backup (and system maintenance) practices have you put into place?

We feel pretty confident about our SQL backup strategy, but the only items we're finding in the official docs are for SQL at http://docs.imis.com/15.1/index.asp?topic=/15.1/34128.htm and nothing regarding iMIS itself and the WCM sites.

For our environment, we're looking at a SQL server, app server, and two WCM servers (same content on both).

We're assuming some of the same maintenance steps as we currently perform - grabbing graphic and content (PDF, etcetera) files, monthly reboots - but want to be as prepared as possible for anything else.

Thanks!