The SharePoint Server 2007 Internal Buzz Kit includes everything you need to run an internal communication campaign for your SharePoint Server 2007 launch. A lot of the material is intended for a company announcing a SharePoint deployment; however, much of the material can be easily adapted for an educational institution.  For example, this video walks users through use of a team site.

Here are some additional online resources that might interest you.

Get Ready

SharePoint Resource Guide