A bit more techy session - trying to mix it up a little.
Michael Buchanon from Michigan State University covered customizations of the Angel environment. From the simple to the complex. Of most use to us might be the custom nugget creation. Suggested workflow is to copy another similar nugget, alter the code/text as needed, create the INI file for the new nugget to control how and where it will show on the page, and finally add the nugget to the page layout. And I believe the custom nugget needs to be added to both/all servers.
They also have commented CSS for 7.4 theme creation @ http://www.msu.edu/~buchanon/AngelThemes.zip