Do you own WebAssist iRite extension for Dreamweaver? That would allow you to make a lot of configuration changes through a wizard so that you wouldn't have to create them by hand.... but they can be added relatively easily.
You just need to create an xml file to define what will be available. You can read about it at:
Styles
There is a good thread about this in general at:
showthread.php?t=1573&highlight=fckeditor&page=2