True, the food's not much. But in the middle of the night in West Palm Beach, there just isn't any competition, outside of Denny's and the 5 a.m. bars out west. And for atmosphere, Havana's all-night takeout window, located as it is in a light-industrial/low-rent-housing area of Dixie Highway, can't be beat -- especially if you're a Raymond Chandler or Elmore Leonard fan. Down these mean streets, a man must chew, and sitting out front under the street lamps on Havana's bus-stop-style bench, the 4 a.m. diner has a front-row seat on the graveyard shift's lunch break -- a democratic mix of cops and other city workers, deliverymen, clubgoers, and restless suburbanites who don't wanna go home. Mixed rice and beans with plantains at hand, styro cup of Cuban coffee venting steam, sip deep and drink in the humanity. That clean, well-lighted place you seek is here.