X-10 MouseRemote hardware is available from http://www.x10.com/. gpm is a standard mouse-server package that can be obtained from any Linux distribution site, and the chances are good you already have it on your system. mp3blaster, written by Bram Avontaur, is a good mp3 player with an excellent text user interface, and available at http://www.stack.nl/~brama/mp3blaster.html. The version to which I made my modifications is 2.0b9.
The festival package is developed at the University of Edinburgh and is available at http://www.cstr.ed.ac.uk/projects/festival/.
Modified mp3blaster with all other necessary patches can be downloaded from http://www.geocities.com/SiliconValley/Hardware/1664/.
Home page dedicated to that project can be found at http://www.devic.dynip.com/.