Sorry if someone posted something like this before, but with all these [spoiler] threads, it's impossible to tell :P
http://www.youtube.com/watch?v=jdBFt4LZF0c
It includes voice files of:
Alexandros
Darion
Jaina
Sylvanas
Muradin
Uther
Tirion
Bolvar screaming
and some guy called The Lich King
Too bad there's nothing from Varian, Thrall or even Garrosh...
Maybe they only have written dialogs...
Someone go faceroll the fight and give us a proper video of the whole fight and related events, and no stupid techno music, nobody likes it!
All these files are inside:
/Data/enGB/patch-enGB-3.MPQ
open that file with an MPQ viewer and go to:
/sounds/creatures/