Come home to a long stately gallery of your most cherished art, and step into the sun-filled formal rooms surrounded by windows that offer east, north and south exposures. The reservoir dazzles outside the oversized living room. The living and dining rooms invite comfortable family and gracious entertaining. Ten foot ceilings, extensive original decorative moldings and intricate hand laid trompe l'oeil wood floors enhance the grace of this turn-of-the century seven room co-op throughout.    The large bright formal dining room can accommodate both formal and casual entertaining, and the windowed eat-in kitchen offers a cozy alternative for less formal meals. The double Master bedroom includes a comfortable sitting room. A second large bedroom and a maid's room/den are served by two full baths and generous closets. This much beloved home has been off the market for over three decades; now it is time for your special touches.    The Turin, 333 Central Park West, built in 1909 and designed by Albert Joseph Bodker, is 12 stories of 72 units offering five to nine room residences. Approach the building through its deep courtyard and stately step-up lobby. Prominently located on Central Park West, this prestigious co-op offers many amenities: 24 hour doorman, live-in Super, new fitness center, children's playroom, storage, and bike room. Washer/dryer permitted. Cats and dogs are allowed. The reservoir jogging track, North Meadow, and the newly refurbished children's playground are directly across the street. This residence is near West side subways, the cross town bus and Whole Foods.