Samples as in sfx or music?
I've got some ambiance tracks that I'd be willing to let you use for non-commercial use.
PM me or email me at willxinc@hotmail.com if you're interested.
Edit: Samples here:
http://xyen.bandcamp.com/album/ambience-vol-1-darkness
http://xyen.bandcamp.com/album/ambience-vol-2-light
Ignore the prices etc.