''Windtalkers'' star and family man Christian Slater is selling his abode of two years. Built in 1938, the 3,500-square-foot, Cape Cod-style house has a family room, a library, and an office, as well as such classic features as wood floors, crown molding, and French doors. The walled and gated two-story spread also has a separate guest house, a pool, and park-like grounds. The residence is in the same posh Los Angeles neighborhood as the homes of Dylan McDermott and Michelle Pfeiffer. In 1999, Slater sold his Hollywood Hills house to Tim Allen for around $2 million. No word yet on where the star, his wife, Ryan Haddon, and their two children will be moving.