The post-holiday restaurant lull usually produces a raft of good eating deals, but a new stay-and-dine promotion from Indigo Road and Charlestowne Hotels is pretty good even by January standards. During January, the restaurant group and hotel management company are offering discounted downtown rooms which come with a $100 Indigo Road gift card, good at Oak Steakhouse, O-Ku, The Cocktail Club, The Macintosh or Indaco. The rates are slightly higher on weekends, and six nights are excluded from the promotion, but there are plenty of attractive arrangements available. For instance, $179 buys dinner and a weeknight room at the Andrew Pinckney Inn, The Elliott House Inn or King Charles Inn. The French Quarter Inn and King Charles Inn are also participating. For more information, call your chosen hotel directly.