Another Microsoft Office (SharePoint Designer) 2007 Hidden Gem:
One of the great features of Microsoft Office SharePoint Designer 2007 is the ability to control click code to view external resource associations.
For example: If there is a CSS class applied to an element in your document, the class-name will by “underlined” and control-clickable via code-view. Doing so will take you not only to the external style-sheet it’s pointing to, but directly to that classes properties within the style-sheet. Great usability feature – bravo!