Probably an easier way, however, you could use elseif and something like the following:

Code:
on *:input:#:{ if (*.ncn* iswm $1-) { splay ncn.wav }
  elseif (*.great* iswm $1-) { splay great.wav }
  elseif (*.whatever* iswm $1-) { splay whatever.wav }
}


Regards,

Mentality/Chris