Got mine yesterday. For all of you guys who may have concerns about these trackballs, let me tell you that you have nothing to worry about. Either these were very rarely used or Peale did a bang up job of cleaning them. Mine is spotless inside and out, the ball is bright white, and the bearings seem to have been recently oiled. The bearings and rollers are all metal and very heavy.
I was able to hack this to a mouse in about 30 minutes, no problem. The red wires go to 5 volt +, black to 5 volt -, the other four wires go to left, right, up down on the reciever points on the mouse board. I had to swap the wires around a couple times to get the directions right, since I was just guessing as to what was what on the mouse. Very simple to hook one up. If there's interest I'll post which color is which direction.
I did a little "bench testing" with Centepede after I got the directions right! Can't wait to get a panel built for this thing!
Thanks Peale!
-S