Andrew,

If you're familar with the John Ford classic, "The Quiet Man", you might want to visit Quiet Man country near Ashford Castle. Cong is where the majority of the film was made (all of the indoor scenes and some of the outdoor ones were shot in America) -- see these web sites for more information:

http://www.quietman-cong.com/

http://www.quietmanmovieclub.com/tourism.htm

Cheers!

T.