Yeah, I get that, but 4 players can easily stand around a single 25 inch monitor. And if we are going to get into that, the way the machine is laid out, it'll be a tad bit cramped for fighting games, you have far too many controls, the trackball and spinner are in akward positions, we've seen "dual tier" control panels in the past and they've turned out to be uncomfortable, ect.....
But I didn't want to comment on the cabinet, but rather the merits of a fe designed for playing two games at once.

I'm glad you are happy with the design and the fe looks very nice so lets leave it at that.

BUT, if you haven't actually built this machine and you are still in the planning stage I would seriously consider taking a second look at some of the design elements.