PC Parts for an ArcadeVGA

[Funktor]

I was given a relatively gutted Neo-Geo cab and am planning to MAME it.  The arcade monitor works great, so it seems like the ArcadeVGA card is the way to go.  I need to know what other modern hardware goes with it, in terms of cores / mobos / power supplies / etc.  I've been out of the hardware game for a while so I don't really know what's out there.  NewEgg doesn't even let you search for a mobo that has the required PCI Express x16 slot... Also, does the ArcadeVGA act as a graphics card or should I be concerned about integrated GPU?  How much RAM?  And so on...

Seems like these should be common questions but I don't seem to know how to search for good recent results on it.

Basically I'm pretty confused.  If anybody can help me spec out a system that'll have great performance, I'd really appreciate it.  Games that I have had trouble emulating before that I'd really like to work would include a lot of that 1999 - 2003 sweet spot: Gradius 4, Gauntlet: Dark Legacy, Tekken 3 (or tag team, etc), and so on.  Ideally I'd also like to be able to run console games through as late as the Sega Naomi stuff, but I'll take what I can get.

[Dawgz Rule]

Check again on the filters for motherboards.  I was just up there and you can filter by PCI Express.

[DeLuSioNal29]

You may want to check out this thread for a good deal on systems.

D

[Funktor]

If anybody could talk a bit about what features I need to look for in a motherboard, that would be really helpful.

[Dawgz Rule]

Can't help you out on the system specs as I am more of an 80's arcade enthusiast.  Sorry.