BEST GHOSTBUSTERS

They don't carry the ectoplasm-seeking nutrona wands and proton packs of Aykroyd, Murray and company, but Joe and Mikki Shelton of Arizona Trips n Tours and their ever-shifting team of investigators, aspiring parapsychologists, acceleration physicists and just plain ghost nuts are "who you gonna call" once you've heard a few too many spooky bumps in the night.

Eschewing a flashy Ectomobile in favor of a caravan of compacts and beat-up pickups, the members of Arizona Paranormal Investigations crew set out on monthly expeditions to the state's most notorious ghost towns, like Tombstone and Jerome, as well as a few not-so-obvious spots around the Valley -- one forum member is convinced the old Spaghetti Factory building on Central Avenue in Phoenix is haunted by the ghost of a little girl in the attic. The best excursions, though, are the ones the API crew must conduct undercover. Founder Gary Westerlund, who turned the organization over to the Sheltons in July, insists there's an old hotel in Glendale that's now haunted by the ghosts of dead prostitutes and johns from the days when the hotel was a wild Western brothel. Current management, however, would rather the hotel be noted in Fodor's for its air-cooled suites and kitchenettes. When the API crew shows up with its infrared cameras, low-frequency sound recording equipment and electromagnetic field detectors, the "no vacancy" sign goes up -- and true ghostbusting adventure ensues.