Sounds a lot like A. Bertram Chander in his later books of the John Grimes series. Think its 'The Dark Dimensions' were he looks over the shoulder of the author and talks him into continuing writing the story or some such.
But then this is a character talking to the writer and not writer to writer.
Like listening to old SciFi on audio books. Turn them into MP3 files and use my Creative Zen Xtra to listen to them in the car, or while waiting while my wife is shopping.