H4CK3R,
Real nice job!
I actually just ordered a 4 player panel kit from mameroom too intending to do the same thing (a stand for the panel and a large TV instead of a cabinet). I was originally intending to order a two player panel, but my wife convinced me at the last minute to go four players since this will be the last machine. I ain't looking forward to wiring the bad boy, but it should keep me busy for a while.
Are you using electric ice buttons with the LED-Wiz? I don't want to light every button, but I'm curious as to what the easiest way is to set up lighting for all of the player buttons or if it's just more trouble than it's worth...
Depends on how you want your setup also, do you plan to wire single color leds to the buttons or using the RGB leds? The single colors your only running two wires for each led while the RGB are 4. Now it may not seem like a whole lot more but when your wiring a 4 player cabinet, wiring every single button, with RGB joysticks also, you can be wiring at least 152 wires on the RGB leds alone. Not taking into consideration the amount of time to set up and map each buttons R G & B wire to the correct led# port on the software you use (which isn't that hard but a time consuming job).
Honestly though if you don't mind the extra effort and work the RGB leds are a awesome choice, and give you almost a unlimited amount in color choices once fully setup. You'll definitely feel good about yourself once its done also. But be ready to cough up quite a bit to fund the project. With the control board itself arounf $150-$175, you have like 42 buttons (9 [start+coin] each player, 3 for trackball, and 6 for admin buttons, plus the led boards with the wires soldered on already ( which I suggest having done for easier time starting), 4 or 5 RGB led joystick, a translucent track ball + special RGB led board (drilled on existing trackball unit to save $) and then the 5 led-wiz boards your gonna need to light up a 4 player panel with the RGB leds. (Phew that was alot) Your easily looking at $400+ for the led project supplies alone, and around $675 altogether for the board and all.
Plus your gonna want to order an extra 5-6 in RGB led boards just to be safe as while I did my board I accidently broke 3 in the process with either the wires coming off ( they are really thin and come off with too much force) due to misshandling or the leds got bent while installing in the buttons.
The single leds will be cheaper project wise, but if you don't mind the reeeaallly long time setting it up and getting down to a really detailed job its worth it getting the RGB. You don't need to be a rocket scientist to do it but patience is definitely a must.
Phew... that was long but hope it made up your mind.