This past Sunday, the Choir of St. Francis de Sales Oratory, directed by Mr. Nick Botkins, premiered the Kevin Allen motet O Sacrum Convivium, and also performed Allen's O Salutaris Hostia.
The links below should play both pieces. For more information about the music of Kevin Allen, check out this post from the New Liturgical Movement.
The Oratory choir continues to impress.
UPDATE: I will try to make this easier, but for now I think it will work if you download it first, then play it in your mac or windows player. I was able to download it to my mac and then play.