Fr. Pierre Paul, the force behind the new musical renaissance at St. Peter's Basilica in Rome, has opened up a website completely dedicated to the musical life of the Vatican's Basilica, with a focus on Gregorian chant and polyphony. Here we have a very beautiful thing: the Vatican setting a liturgical model for the Catholic Church around the world.
The site is Cappellagiulia.org.
It will post the liturgical schedule and a list of music sung (already you can see the chants from the Graduale here), and also here some great recordings, among which already:
Alma Redemptoris Mater Palestrina
Ave maris Stella - Perosi
Finita iam sunt proelia - Palestrina
Hym. Christe Redemptor omnium
Kyrie Octavi Toni - Lassus