MAME Machine help

[Sacks]

I know someone on here is expirienced in this particular area of.. stuff. So I'm building one of these things, I've got the cabinet, it's an old Astro Blaster with the original monitor, I intend to use said monitor and just gut the cabinet. Anyway, I've been talking to two guys who claim to know what they're talking about, but neither of them agree on any specs. One says I need a top notch intel processor, and then other says something else, and then theres arguing, and then I cry a lot, and then it happens again in a week. So I ask of you, kind sir, what kind of specs do I need to run this thing?