I’ve updated the ISTC articles page with my latest one which covers the use of the Quick Access Toolbar to give your macros a simple to use interface (not a GUI, though … ).
The next few articles planned for The Communicator magazine will cover the use of forms to give your VBA a proper ‘front-end’. This will need to be spread over a number of articles purely due to the wide range of items you can add to a form and how they react with your VBA code.