William Trevor and Edna O'Brien. I turned a friend on to them, and now books by both are moving back and forth on a conveyor belt from house to house. I also recommend Nuala O'Faolain's My Dream of You and James Joyce's A Portrait of the Artist as a Young Man and Dubliners.
For the kiddies, here's a children's book that references one of the primary figures in Joyce's Finnegans' Wake: Mrs. McCool and the Giant Cuhullin: An Irish Tale. And for the soundtrack to any Irish celebration, you can't do better than the Chieftains' Voice of Ages.
What's your favorite Irish quaff? 1) Harp lager, 2) Guinness Black & Tan, 3) Kinsale lager, 4) Murphy's Irish Red
How about Irish whiskey?: 1) Tullamore Dew 2) Jameson 3) Bushmills