On Thu, 13 Oct 2011, feldman.r at
comcast.net wrote:
Get one of these: 2-1/4" Trackball with USB
and PS/2 Interface, from
Suzo-Happ (
http://na.suzohapp.com/trackballs/565600xx.htm ) and a
couple of pushbuttons (
http://na.suzohapp.com/pushbuttons/539200xx.htm ) and build a case
for the parts. These trackballs and pushbuttons are made for arcade
game consoles and are super-rugged. I used them in exhibits at the
Field Museum in Chicago and used one at work for 10+ years without
any problems. The track balls are not cheap ($183), but are
rock-solid.
If I was going to build myself a Centipede cabinet, that would be my
first choice. :)
I've got a couple of CH trackballs that I've used for years. One is
a model that can be configured for a variety of systems: