Last weeks I midified 3 organ manauls en a pedal board using a Core32 module and 7 DIN modules.
Some pictures can be found here: http://forum.hauptwerk.com/viewtopic.php?f=15&t=6538&p=45730#p45730
Realy cool stuff, this ‘midi boxing’ 
. I like the modularity and the user support.
Best regards,
Edwin