hmm...Interconnecting several items of MIDI gear can be a frustrating business. A Midi Thru (midi splitter) box is your best bet.

Some of your MIDI gadgets may lack the MIDI Thru (MIDI-thru) sockets which are required for connecting several devices together in a 'chain'. Where MIDI thru ports are provided, the signal throughput may introduce 'duty cycle' distortion or time delays - so 'chain' performance may be unacceptable, particularly on 'chains' of three or more.

You can setup this midi feature in the star setup, in which the midi keyboard goes into the midi thru box and it goes out 2 outputs (midi thru outputs) into the 2 slave drives (computers).

http://www.midisolutions.com makes great midi thru boxes, check them out... 8-)

thanks for the reply .

so , i should buy a midiman (or something like it) and then there is a switch or something to switch it from comp to comp ?

Yep, you need a midi interface. I have a MOTU MTP A/V & MIDI EXPRESS XT that takes care of my midi needs. One in the recorder rack & one in the keyboard/sound module rack. My controller has 4 midi outs but I only use 1 for now. It was frustating a while back having to disconnect/reconnect every time I had to access something. The basic idea is to have the s/w (& hardware) loaded on one computer and slave/hub the other. That should do the trick for ya.

you would need a midi interface for both computers, and a midi thru box. The midi signal would go out the controller, into the switch, from there it would go into the two computers through each comp's dedicated midi interface. The midi infaces that dabmeister music suggested may be over your budget, if they are then there are cheaper alternatives such as buying a midi to usb cable (rather than an interface) or buying a midi to com. port cable, this way you elimintae the need for a pricy interface. But! If you have the money, go for the better interfaces, you'll find use for them in the long run. 8-)

thanks guys !!

edit - i should add i have a 1212m and an 1820m - i guess i just need the box .