I put a lot of stage time on an OB-X back in the day, and have missed that puppy (though it would have been hell to drag that big thing along with me over the last 20 years or so). These guys in Czech seem to have coded a virtual duplicate, called the OP-X, and I’m on the verge of buying it.
http://www.sonicprojects.ch/obx/description.html
Being the cautious guy I am, though, I wanted to ask around first: has anyone here tried this out?