I'll shed a little light on the project(s).
These are for me, and I'll be building three cabinets with my brother. One is for my boss' personal use, another is for my brother's home, and the 4-player panel is for the office.
I don't work with the most picky arcade gamers (most of them like PC and console stuff), so I'm just keeping things simple. With all three panels I'm going to be using Happs joysticks (Supers and Competitions), standard pushbuttons, Happs 3" trackballs, and TurboTwist spinners. I don't think anybody besides myself would even appreciate the inclusion of a true 4-way stick, so I just decided to go without it to avoid confusion and clutter.
Timoe's work looks great, and I can't wait to get everything in hand so I can start wiring things up. The 4-player panel is going to be used with a 27" monitor, so it should be perfect. The 2-player panels will most likely be using PC monitors or TV sets, but we don't have those ready to go yet.