I just compared a GeForce4 and the ArcadeVGA on a WG D9200. At frist I thought I wasted my money on the arcadeVGA. But I had hardware stretching and a few other things still on in my mame.ini file that screwed it all up. I would really recommend the ArcadeVGA over the GeForce. The original games ran at very low res in comparison to todays cards, and the GeForce cant run at those low resolutions (that your D9200 will support). If you were to use your GeForce, you could only run it at 640x480 and 800x600 (at 60Hz). Kind of a waste... Even if you want to play windows games at the lower res the ArcadeVGA isnt too bad (its a Radeon 7000 chipset). Dont expect to play Doom III on it when it comes out, but the hi res pic isnt the clearest on the arcade monitors (which is what makes the old games look good, lots of blending).
Also, you can set it up so windows (if your going to run windows) will run 640x480 and 800x600 at 30kHz instead of 15kHz vertical refresh rate, so it wont be interlaced and all flickery. But when you run a game through mame thats a lower res, it clicks down to 15kHz and gives you the lower res.
Hope this helps some!
--Kevin