David Duchovny will answer your phone — for the right price. And “Sex and the City” costar Kim Cattrall will have (ahem) lunch with you. The Duchovny phone machine tape and the memorable meal are but two of the items up for bid in the “Auction of 1,000 Stars,” to benefit the Actors Fund of America. The gavel begins banging tonight at Manhattan’s Studio 54 and will continue for the next 10 days online at auctions.yahoo.com. Also for the bidding: walk-on stints on TV’s “Will & Grace,” “Frasier” and “The Bold and the Beautiful.” According to the New York Post, four-figure bids are already in to go sailing with veteran newsman Walter Cronkite and to have lunch with “West Wing” writer and producer Aaron Sorkin — who will also critique the bidder’s screenplay.