oh and for a really great sounding celtic rock band you should try and look up "the moors" they had a great album released on CvB records back in the late nighties. one of a number of stellar boston bands. just found a video, didn't even know they had any!
http://www.youtube.com/watch?v=4yLcyPOHI6M
here's their myspace page as well; had no idea they were still together.
http://www.myspace.com/80965155