Downtown Napa used to be a sleepy place, with working-class roots that set it apart (some might say pleasantly so) from its increasingly chic and expensive "up valley" neighbors: Yountville and St. Helena. But these days Napa is turning into every bit the wine country destination. With about $700 million in public and private investment flowing into downtown, Napa is abuzz with more than a dozen new restaurants, several luxury hotels, wine tasting… Continue