Here's the best way to do a quick check on the NYC dining scene: http://ny.eater.com/
Two very important trends: outer-borough places, particularly in Queens and Brooklyn , are getting a lot of attention from foodies. With all due respect, Marchi's is a disaster, Manhattan's best Italian eateries are in the Batali-Bastianich empire, i.e. Babbo, Lupa, Esca and Del Posto. Lidia Bastianich's Felidia may not be trendy but it is superb. For under-the-radar French, try La Mangeoire or Cafe d'Alsace. For pizza, try Motorino Keste or Don Antonio. Of course, for a once-in-a-lifetime dining experience (and priced accordingly) there's Thomas Keller's Per Se; Daniel Boulud's Daniel or DB Bistro aren't too shabby, either.