In the interest of keeping the site less cluttered, I've decided to supply the links for the videos instead of embedding them. If you think I should go back to embedding the videos, let me know in the comments.
Introit: Cantate Domino
Offertory: Jubilate Deo
Motet: O Esca Viatorum
Recessional: Regina Coeli (Palestrina)
So far, I've been unable to find a video for the Communio, Ego sum vitis. If you find one, post it in the comments. (ETA: Kathy did e-mail an audio copy.)