One of the best Carolan sites I know of is
this one, run by Lesley, who Mudcats as well. Go to the Carolan section, but don't forget to have a look at Barry Taylor's tunes, also a Mudcatter, who does some of the most beautiful arrangements of folk tunes I have heard.

http://www.contemplator.com/

By the way, Fanny Power is one of my favourite Carolan tunes on the Celtic harp.

Helen