Today <a href="http://www.mame.net">MAME v0.37 Beta 5</a> was released and it has added not only MK2 emulation with sound, but MK3 and UMK3 has been emulated with sound. Again the CPU speed needed to emulate the games with sound will probably be great. Check out our friend TonyD's site <a href="http://emulition.com">EmuLition</a> for MAME and other related emulation goodies.