Amazon has Professor Teaches Office 2007 for $12.99 + super saver eligible.
Product Features
* Learn all about the abilities and benefits to using the complete Microsoft Office package -- complete instructions for Word, Excel, Powerpoint, Access and more
* Keep track of your clients, colleagues and peers more effectively with Business Contact Manager
* Integrate your sales & project teams more fully by using Microsoft SharePoint Technologies
* Get a feel for how much you can do with XML -- design databases, collect information and create a more responsive work system