I also found these, dont know if they work tho.
pros: Joystick, excellent button layout
cons: you might not be able to set the d-pad to the joystick, you may prefer d-pads
buy here:
http://www.the-console-corner.com/g3_gamecube_arcade_stick.htm
pros: you could fit the stance change button on the face on the z button, bigger d-pad, shallow triggers
cons: still the funky gamecube button layout
buy here:
http://www.lik-sang.com/info.php? category=75&products;_id=2467&
pros: better button layout, bigger d-pad, better d-pad position
cons: deep triggers
buy here:
http://www.ebgames.com/ebx/product/225567.asp Forget about PS2 controller converters, you get error messages every 5 minutes, they don't work. And you also get have the same problem with about 1/2 of the 3rd party controllers out there, so the above controllers might not even work.
If you have any of these three controllers I mentioned, please tell me if they give you an error message or if they work at all. I'm desperate for new GC controller that is more MKDA friendly.