Many times discussions with current and prospective clients end up on the topic of compliance. This is an area where the new Office 2007 suite shines.
I have passed the following document on to a number of folks to help them understand some of the built in compliance features - 2007 Office System Document: Compliance Features in the 2007 Microsoft Office System .
It's not the world's most exciting read – but it will give you an idea of capabilities and areas of extensibility in Office 2007 to help your organization meet the demands of regulatory compliance.