As Office 2010 is now generally available ..woohoo, I saw it in my local Best Buy store, you probably want to look and identify if you will have or potentially can have any issues with migrating from earlier versions.
And wouldn't it be nice if you had a tool for that?
Watch the Channel9 video series
The application compatibility guidance and tools provide a way for Information Workers, IT Professionals and Developers to assess both the desktop environment and their code for add-in compatibility.
This video introduces the Office Environment Assessment Tool (OEAT) and how to use it to assess your enterprise environment.