IntelliTours and TourGuide

Has anyone used any of the "IntelliTours" files ?

http://www.intellitours.com/

Or used Garmins TourGuide on their units ?

I am taking a trip from Baltimore to Williamsburg, Virgina this weekend and the area is loaded with history.

I was wondering what is available to load on my 2730 for the drive.

Thanks, Tim