I've had the below monstrosity in my basement for almost 5 years now and after finally finding this forum, becoming a member yesterday and reading through a TON of posts here I have the inspiration and time to convert this thing into something special.
I saved this gutted but in very good shape GT Live dual monitor cab from being cut down into a pedestal in the hopes of saving enough cash to restore it to its former GT glory. Afterwards I realized how much I'd have to save to do that.

5 years later I'm only slightly closer to making that happen. Not close enough. Therefore, I'd like to transform it into a multi-emulator cab to run MAME/NES/SNES/Genesis.
Looking for further inspiration, I have yet to see a finished conversion anywhere of this exact type of cab (if you know of one please point me to it), so I'm looking to the expertise and experience on this forum to help structure what I have in my head. I've built two cabs in the past, the first quite sloppily and the second more soundly (both here:
http://forum.arcadecontrols.com/index.php/topic,149598.0.html ) but am still learning as I go, so I'm still figuring out lingo, etc. so bear with me.
Borrowing from ChanceKJ's run-down format, here's what I'm thinking, but am changing my mind all the time:
Controls:
TVs: 42" or 46" LCD mounted portrait (a la Maximus' MvC: Revolution 2.0
http://forum.arcadecontrols.com/index.php/topic,139647.msg1444212.html#msg1444212 and Token's Moonshot
http://forum.arcadecontrols.com/index.php/topic,147277.0.html ) modified to 1080x1080 resolution, with a 25" LG UM57 25UM57 21:9 for dynamic marquee.
Computer: TBD, but prob i3 with decent enough video to run two monitors
Cabinet: GT Live Dedicated Dual Monitor
Electronics: RGB-LEDs, hackable computer speakers to run amplifier board to existing cab speakers
Design Goals:
-Patch up minor dings on the white side wings, replace t-molding.
-Remove topper marquee, or possibly create new art for it once the cab is named
-Original artwork for side wings and CPO, possibly where current GT "Your card is your ID" art is. Would love simple 8-bit art on the cab, preferably Punch-Out!! or SMB3 themed (love the SMB3 box art blue font). I really liked the art job jmike had on his Punch-Out pedestal, but maybe just the ring for simplicity. However I could see something more flat like Token's Moonshot.
-Cab mounted volume control and USB for consoles greater than 16-bit gen, located on front of the cab, maybe where the DBA or card reader was? Then figure out what to fill the hole I don't use with.
-Remove portions of large existing bezel to fit portrait-mounted TV and dynamic marquee
-Move existing speakers and grill to new location between TV and dynamic marquee
-Wire CPU power on/off to switch on outside of cabinet
-HyperSpin FE
-Build elevator in my house so I don't have to lug this upstairs when I move again

Control Panel:
-Looking for design/CPO art inspiration as mentioned above.
-2 player controls, P1/2 7-button. 8way or 360 joysticks? Recessed trackball?
-2 Start/Coin button sets,
-MAME master control buttons: Pause, Menu, Exit, Aux
I'm sure I've missed something in my recap, but I'm excited to hear what you all think. Good or bad, it's all constructive right? Any ideas are appreciated, especially regarding hacking up the huge one piece plastic bezel that goes all the way up the cab to make both monitors fit. I'll have a lot to learn along the way but hope you stick along for the ride!