Oh and just to get this out there before someone says it.
NO regular updated content is NOT needed to help search engine ranks. Its always about consistancy, not always about new.
Being unique is standard, but having it constantly changing and updating is not a requirement. In fact with a historically ranked website that has static content, you stand more to lose with content updates then you have to win. (if your ranked, and your top, why change anything exept how much you make off the clicks)