Interesting that AMD had quad-core chips "on the horizon"...right now the latest news says that AMD has "taped out" - what we in the biz call it when the reticle plates have been made but no chips have actually been manufactured in quantity and sold - the design of a quad-core chip. They also have said numerous times that they are manufacturing 65nm dual-core chips but have shipped zero to date. 65nm chips consume less power, generate less heat while delivering the same (or better since there is no power loss) performance. Performance/watt is now the name of the game, not top-end speed.
Again, not trying to knock AMD in any way - all I'm saying is do some research and find out just what Intel has been doing in the last 3-6 months. I realize there are lots of people that are dedicated AMD fans and I truly respect and appreciate that -- all I ask is that Intel be given it's due and out of fairness, a closer look at what has been put on the table.
And, yes, I agree - all this discussion is reserved for desktop PCs and not MAME cabinet PCs - that would be a tremendous waste of horsepower and money.