I've been meaning to post some new (to me) finds on itunes.
They Might Be Giants has a weekly video podcast. They're releasing the songs for their new album/dvd "Here Come the 1, 2, 3's." For fans of their ABC album, log on!
Sesame Street has a weekly video podcast as well. They're about 5 minutes long. It's "The Word on the Street."
And don't forget Storynory for your slightly older little ones. The stories are great, sometimes classics, and Natasha has a cult following of ESL students and 5 year olds.