Hello Gents,
I'm mighty confused.
About a year ago I bought a full arcade-at-home machine off my boss. It was a Ninja-Gaiden box he converted. It has a PII 400 inside on a special timer. When you turn the system on, the computer boots, and 2 minutes later a separate timer turns on the monitor, and by that time ArcadeOS is running. This is so the video modes of DOS don't mess up the monitor.
About the only fooling around I've done is adding some old PC games to the box, Quake, Duke3D, and some other FPS are quite fun to play on the full size arcade, and work perfectly inside of ArcadeOS.
Now I'm looking at running Mame32, and basically upgrading this machine to a windows box. It appears to do this, I will need to upgrade or change the 19" monitor in there.
I looked up the WG u3100 Monitor, and this seems to do what I want, it will run 640x480 VGA on a D-Sub connector pin, as well as run all the arcade game modes. I could remove my Boss' homemade VGA to Jamma connector he has in there and simply plug the monitor directly into the computer video card, which is an older ATi video card. I would also be removing ArcadeOS and having the machine boot to windows and pick out my games via a PS/2 trackball, so I could install even more old PC games on an arcade type cabinet

So, is my thinking off here? Is there a better monitor to buy? A cheaper one? Should I just buy a PC monitor and mount it in there? I really would like to just slide a arcade monitor in there because it looks better and there a lot less work involved. I am also kind of looking for the cheapest solution here, I'm on a college student budget

and don't have a lot of extra money.
Any advice is appreciated, even if you want to tell me I'm a fool for doing this or that

And if you need more specific information please ask it so I can look at the machine and get it--I know for example it might help to know what monitor is in there but I have no clue posting here from work.
Thanks in advance,
-KabuKi