Luxury cars purr to a stop in front of this Cherry Creek North mainstay at all hours of the day. The drivers valet their vehicles and head into the sleek, airy spot bedecked to meet friends -- or make new ones. During the day, North Italia is popular with ladies who lunch, and who do so over leisurely meals of salads, pizzas and pasta. At night, the dining room glitters coolly through its floor-to-ceiling windows, luring in Cherry Creek's moneyed singles. They pack the tables and bar, and occasionally even remember to order some of the kitchen's excellent, modern Italian fare, which goes perfectly with those martinis, flutes of champagne and bottles of wine.