Bev Vincent wrote a great behind the scenes piece on Ghost Brothers.
King and Mellencamp met for the first time in Florida in 2000. Mellencamp marveled at King's ability to weave characters and subplots into a whole. King suggested adding booze and a roadhouse to the mix, taking what was essentially a short story idea and turning it into something Mellencamp described as a fully evolved tale of Americana with a Tennessee Williams feel. They relocated the setting to Louisiana because it seemed natural to turn the story into a Southern Gothic.
There's a lot more over at Fearnet.com.