a couple of the folks who created this game has a wicked good sense of humor. so far, I've been able to uncover two bits of dialog that hints at songs. Pink Floyd seems to be the favorite.
drunken Merrill in the pub: "Shine on, you crazy diamond"
Eugene, near the bandit camp: "Careful with that axe, Eugene"
I did find another song in there by another music group, but I can't remember it and i forgot to write it down....CRAP! it is neat to find these things though.