Thanks all! I've bookmarked the VBA material to review. In the mean time, the Quick Parts/Auto-Text feature may hold me over until I have time to explore the building blocks idea.

Is there a way to save the auto-text in a location that multiple instances of Word would reference it? (I have two or three folks who would need to use this, and I can go around and update their Word individually, but if a single instance can be utilized, it would be more efficient).

Yes, in a Global Template or in the document template. The template for your letterhead would be the ideal place. If it will be used in documents based on multiple templates, then use a global template as the storage.

Very nice!! And, one last thing, is it possible to include headers and footers in quick parts? Maybe under the Cover Page option?

I think you meant the "UserForm idea." Quick Parts is a meaningless term that someone in MS marketing came up with AutoText is a type of building block and Building Blocks are included in the Quick Parts button as are fields. Labeling something as a quick part doesn't communicate any useful meaning.