Count me in, I've got a driver board for a 5408. http://webpages.charter.net/pminmo/CNC/5804channel.jpg
Working on one for a 3977 chopper driver. Pcb's are made, In debug.
Personally I'd like to see some effort into a standard established, that uses the parrallel port interface as designed, with a edge clocked strobe to latch the output data. That way software developers could have a common driver if they wanted. Would o aid in the Widows NT/2000/xp kernel world, so it would become less dependent on other cocnurrent running threads.