Roger - yer a prince!
To see the difference between the Uilleann (ill in) pipes and a church organ, there is a great classical piece, a commemoration of the Irish Famine of 47, that uses both. I'll dig up the title for you. As to makers of Uilleann pipes, I'd recomend Seth Gallagher in Cold Spring New York, perhaps the best pipe maker alive today. His pipes are so well made any of his chanter reads will play perfectly in any other of his chanters. Any Uilleann piper will take you what a remarkable feat that is!
Cheers and thanks again Roger
Larry Otway http://sorchadorcha.com (plug # 87692)