Dualcore isn't going to do much for mame. Overclocking for Mame is lunacy. 95 percent of the games you want to play ran full speed in mame YEARS ago on a 500 mhz processor.
And they played full of bugs, graphics glitches, sound glitches, etc. I don't know about you, but I'm not going to play a bug filled piece of ---steaming pile of meadow muffin--- version of an arcade game that I loved. I certainly can tell the difference between the older, crappier emulation and the newer, more acurate emulation. You really need to stop calling people "lunatics" for using powerful systems to play a vastly more accurate emulation of games just because you don't want to spend the money doing it.
BTW, the DualCore CPUs do a great deal better in MAME than the equivalent speed P4 chips. This isn't because of the dual cores, but more because of the greater architecture of the DualCore CPUs compared to the laughable architecture of the P4 processors.
So if you want faster, but less accurate emuation of games in MAME then you can go with an older version. If you want more accurate emulation, albeit at a somewhat slower speed, then you'll need the newer version. If you can't tell the difference in emulation between the older and the newer, then by all means go with the old one as it does run faster than newer iterations. Just don't let paige's very vocal opinions prevent you from making a decision on your own.
