Hi AngunI would suggest Fleadh Cheoil na hÉireann which this year is being held in Enniscorthy Co. Wexford over the week-end of August 25th - 27th, 2000. see the following site:
http://www.fleadhcheoil.com/
Also see the Comhaltas site for more info on Irish traditional music:
http://www.comhaltas.com/
Have a wonderful summer. We used to spend the summer following the music festivals round Ireland, until the children came along and life got more complicated (and expensive!)
Regards
Noreen {sorry I'm not HTML-literate + can't make these into real links- can anyone help?