Nice cab! I read the entire thread...it's great how you detailed out your project. I'm in the process of building the cabinet currently (just got done putting the baseboard and front panel onto one of the sides as well as some support beams. I had meant to do the same, but I just don't have the attention span to do so...I'll take some pictures, then I'll start working...and by the time I remember to take some photos, I've already built half the side of the cabinet...oh well.
I guess I'll get the Happs hi lip trackball. They sure are expensive and I plan on getting 2 of them (for 2 player Marble Madness/Rampart/etc). I'm currently planning to build a 4 player cp with the 1st and 2nd players being modular, but I've probably changed cp plans 5 times since I started.
Anyways, thanks for the info...I'm off to bed.