Recommendations for Greek, Italian, Beef or Seafood

Assuming you will be near DC area
      Italian-Positanos (tried and true in my experience)
            Duca Di Milano ( only been there once, but completely amazing!!
                        excellent!!)
            many good Italian in Bethesda

      Greek- Uncle Georges(also in Bethesda, near Positanos- seems to be well
            spoken of
      Beef- Blackies House of Beef-DC
            Ruth Chris Steak House(16oz Filet Mignon- Mouthwatering!!!!!!!)

      Hope these few help...

Listrani's at MacArthur and Macomb St NW is good.... Also AV Ristorante is an old DC favourite (they have a juke box dedicated to opera there) they're at Mass and 9th NW

Greek: Yanni's in Cleveland Park is a GREAT Greek restaurant!

Hope those help
Mark