Got my side art from Souldraw.  I'm 
really happy with it, especially considering that it cost me just under $90 shipped for full sideart and marquee art.  The quality on the marquee was just "okay" - it has a few flaws.  I went into a little more detail on the art 
here in the Artwork forum..Will try to get a better photo when there's better lighting, and update the first post on this thread with it.

The marquee is lit with LED tape.  I also added a male/female plug to the external power switch, so I could more easily remove the PC from the cab.
My speakers have started humming in the last few days.  Still need to troubleshoot a bit, but I suspect that they don't like the marquee LED power supply being on the same power strip.  Not sure what I can do about that.
All I have left is to apply the vinyl & T-molding to the keyboard/mouse surface, and then attach a lip on the end of that same surface so nothing slides off the front of the cab and onto the floor.