I need some help. I am getting ready to wire up a new cabinet. I have always used the Minipac for my interface solution, so this will be my first foray into actually wiring instead of using the pre made wiring harness.
The wiring is pretty simple. We'll help you out as needed.
I need a couple more inputs than the standard 28 the Minipac or Ipac comes with, and saw both the keywiz and GPWiz have 32.
As does the I-PAC VE, not that I necessarily am recommending that over your other choices, but just to keep all your options open. (Also, the Mini-PAC has the mouse buttons (I think) so you have at least 30 inputs, if you wanted to stay with your comfort zone).
I am looking more at the GP Wiz, just because the whole keyboard thing is kind of a bummer and I am looking at having Madden 2007 running on my Seahawks themed cabinet and the gamepad style setup of the GP Wiz would make that transition easy.
Does anyone have any feedback on the GPWiz?
I have never used the GPWiz, but lots of others have. Most (non-MAME) emulators are geared more toward keyboard control (oddly, IMHO), so if you want to use it for emulation, the keyboard encoders seemed like a better choice to me. (Yes, you can use RBJoy or similar to get keyboard output out of a GPWiz, but why work around the solution when a dedicated solution is available.)
Running Madden 2007 if it doesn't support keyboard inputs would be a good argument for the GP-Wiz, but a couple of points:
Is Madden 2007 looking for analog joystick inputs? (If so, the GP-Wiz doesn't support this, so you might want to have some flush USB ports on the cab and use PC gamepads).
Is Madden 2007 looking for one joystick per player? (The GP-Wiz is seen as one joystick (d-pad, basically) and 28 buttons). For MAME, you can set Buttons 15-18 or whatever to Player 2 directionals, but for 4-player Madden, you might need 4 GP-Wiz Eco's to get the game to see them all.
Another option for Madden 2007 would be to use a program called PPJoy with a keyboard encoder from Madden07 as I mention here:
http://www.mameworld.net/tigerheli/encoder/main.htm#Gamepad_Hack_Emulator