I love stuff like that. Ever since I was a kid I've been playing with tapes and digital audio recordings. Nothing serious, just hit record and see what ends up on tape.
Audioboo has some interesting field samples. There was one of a guy crossing a field on a sunday morning somewhere in England as church bells peeled. Just lovely.
Phonography.org is a nice place to browse people playing with field recordings as a musical instrument.
I downloaded the zip file of the Stall album off Marcus Kürten's page, and am right in the middle of listening to the remix done by Zhang JW, which makes for an interesting bonus.
Church bells in a field you say, though! That is so up next on my listening queue.
What would you all recommend to someone who is interested in field recordings, but has heard nothing of them except some Javanese gamelan recordings? Everyone has already given some good stuff to listen to already, but I need more.