Listen to Frank Hennessy's Celtic Heartbeat archived on Radio Wales. He started last week's "best of 2003" show with San Diego's Joel Raphael, so you can see he does not let the name of the show limit his selections. Frank is a folk singer too, and he tells a good story. Can't go wrong with Frank.
There is also a folk show on Radio Cymru at midnight on Sunday nights, but it is not archived.
Chris yn Wheaton