Very clean looking finish, although the joysticks and buttons are a bit high I would imagine, unless its at a super angle. I really like the fact you used Perfect 360s in there, those joysticks are the best you can get! I hope you're treating them to plenty of fighting games. But the Vertical pushbuttons are definitely not a good choice for fighters, I built my first joystick with em, horizontals are 100 times nicer feeling, easier on your hands, and are a billion times easier to button mash with. That's a pretty killer computer you stuck in for MAME, I'm in desperate need of putting something similar to that into my cab, it's sad with its 300mhz pentium II..
Good Stuff
-Luke
PS: that's an electrician's nightmare in there, you used red for almost everything!! Imagine if you had accidently crossed something, it'd be a pain to try and figure things out.