To finish up we got some black poster board and cut a hole for the monitor, to cover up the area around the monitor screen. We also went to The Home Depot and got some more plexiglass for the display and the marquee. I had them cut there because it works much better when you have the right equipment. I cut the plexiglass for the control panel on a table saw which works but is definitely not the best method.
Mad created the cool marquee Shown above from MAME screen shots and her Photoshop. We printed it on Epson Panoramic paper and sandwiched it between two pieces of plexiglass to keep it in place.
Here is a pic of the completed cabinet with the new control panel