Linux DVD Authoring GUIs

There are a couple of GUI options for authoring DVDs on Linux:

tovid - more information available at http://tovid.berlios.de

'Q' DVD-Author - more information available at http://qdvdauthor.sourceforge.net/

Both of these tools are in the very early stages of development, however, they both show you what command line entries they are using so they act as a pair of stabilisers until you're ready to ride the bike on your own.