This thread is really useful for me!
I'm about to build my first ever cab. I wanted pretty much the CP from the BYOAM book, but without the 4 way joystick, and it looks like that is pretty much what DreamWeb is doing (minus some side buttons).
As we tend to have a little less free space in our houses in the UK (I do anyway!) I wanted to shrink the cab design from the book re. the width and depth, with the goal of being just big enough to fit my 21" PC monitor. This means I also wanted to decrease the width of the CP from the 34" that the book plans use. I am heartened to see the above design looks like just the sort of width I was hoping to achieve.
I must admit, very few of the games I play use a trackball, but I felt I had to have one for completeness. I too was hoping to get away with a less-than-ideal amount of space behind the trackball. Also, I was contemplating having the mouse buttons to one side of the trackball, as I wasn't sure if the "trackball hand" would get in the way of the buttons when placed behind it. What are people's thoughts?
Cheers,
Richard