For the DC I have some import gun games too, so I have a few choices.
As for development, as mentioned by a lot of people, heck even someone asked a few weeks ago for a GunCon2 FAQ or "How To" but the thread quickly faded away.
Then, if you want S-Video, you need a circuit built to work? I thought that you could hack an S-Video cable to get the GunCon RCA cable to tie into that. Maybe that has changed, don't know. I've spend a few hours trying to sort through everything, and still don't feel like I am 100% condifent in how to set it all up.
Again, I love the project, I WILL participate in the GunCon2 route, but if I need a circuit built, I sure wouldn't know how to do it, and then with calibration issues, different guns working with smoked glass (which I have) and so forth, I'm just not ready. Others are, but then again I am still just trying to get my cabinet done first, then I will revisit it. Oh, and the Dreamcast is being used for much more than a few light gun games. My kids are big into DDR, so that, plus my other 200+ Dreamcast games need a new home since my wife says that it can no longer sit in the living room.