Got a SC-55 a while back and a MT-32 on the way.

I have the following machines in my computer area.

Connected to Dell U2412M
AM2 System AKA main system(perhaps dosbox)
Pentium 2 Overdrive 333
### Either P3 Tualatin 1.4ghz or P4 2ghz

Connected to 17" CRT
Pentium overdrive 83 (or Cyrix 5x86-120)
386 DX-40

At the moment I have the SC-55 connected to the P2 Overdrive via a midi cable, gameport to midi in(or out?) on the SC-55, then rca out to 3.5mm stereo line in on the AWE32.

Whats the best way to basically have 2 machines connected to one sound module, I was thinking of having the newer dos machines hooked up to the SC-55 and the 386/POD connected to the MT-32, first thing I looked for on ebay was some kind of midi switch but that don't seem to exist, any ideas would be helpful, this is my first experience with sound modules.