Just caught this bit of trivia on ThisDayInMusic.com (an awesome reference site) and figured it may be of interest to a certain poster (and hopefully others as well):

Quote Originally Posted by This Day In Music
1966, Working at Abbey Road studios in London, The Beatles recorded from start to finish, a new John Lennon song ‘She Said She Said’. The song was reportedly based on a bizarre conversation that Lennon had with Peter Fonda while John and George Harrison were tripping on LSD.
I always find this kind of thing really interesting, not just the rumors and legends behind the song meanings, but also the production notes. History!