Hi there,
I know this is an old thread but I'm interested in this idea as well.
I currently use a Doepfer MAQ 16/3, Sequentix P3 and Analogue Solutions Europa
I've also been playing around with the Beat707 Arduino Shield and re-programming it a little.
I want to build my dream drum sequencer that will hopefully look something like this...
I was initially thinking I would build it based off an Arduino board but now I've discovered Midibox I'm wondering if this would be a better route.
Anyone got any thoughts on this or any other helpful links/info?