I'll probably go boomkin at 40:
http://youtube.com/watch?v=90wfQ7hXFRI (blooper version, hella crazy, like boomkins :P : http://youtube.com/watch?v=bS0rX0fidNk&feature=related )
http://youtube.com/watch?v=U8BWBn26bX0
This one is more druid general:
http://youtube.com/watch?v=mRjYtvw8aBw (instrumental)