[Cialug] SOT, .. sound mixers?

[L. V. Lammert]

I have four [three Linux] computers on my desk, and have been using a
Radio Shack SSM-100 stereo mixer with four line inputs inputs and two MIC
(non XLR) to combine audio ouptut from the machines (plus one input for my
Raspberry xPi media player, and one for a good microphone).

Problem is, I now need to add audio from the new Cable STB, and possibly
another source.

*Everything* I have been able to find is humongous, expensive, studded
with 1/4" input jacks (which would require a ton of rewiring), or only
four channels!.

How do other folks solve this problem? Am I missing another options?

	Thanks!

	Lee