Thanks guys
Actually that hole was cut for a 17" widescreen.  The holes cut for the monitor edges are look wavy like bacon.  I kinda eye balled the width to accommodate two adult players.  This design might be better suited for a single player set up.  
I didn't like the way the  widescreen looked, so I bought a 19inch LCD 5:4 monitor.  By the time I am done with this, the monitor bezel will be lower, and probably won't be made out of plywood.  Or at least it will be covered by plexi.  
I finally filled the extra holes on the cp.  I'll end up painting that black for now, may cover it with artwork sometime later.