I think Zencast is awesome and I'm not even a Buddhist. For all the haters out there:
1. Later shows ditched the music, much of which I didn't like either
2. These talks are given either just after or just before meditation sessions. So nobody in the audience wants or expects a loud, charismatic, polished speech after an hour of quiet. The teacher has a topic, they expound on it in a conversational tone, and that's it. This is great stuff to listen to on commutes, meals alone, or after your own meditations. Not so much during workouts or other busy activities.
3. Gil is sometimes irritating when he tries to tell stories 'cause he gets senior moments all the way through and forgets most of the details. But everything else he says is clear and wise from a lifetime of practice.
Listen patiently and you will be quietly amused, entertained, educated and, if not Enlightened then at least elevated.