More research material: "The Eucharistic Prayers of the Roman Rite"

I just snagged Enrico Mazza's The Eucharistic Prayers of the Roman Rite for a mere $15 from Loome Theological Books at the International Congress on Medieval Studies at W. Michigan University in Kalamazoo.  This will be excellent research material for Praying the Mass: The Prayers of the Priest.  (Although, to be honest, I'm starting to wonder if I should make this a three-volume series instead of a two-volume series:  The Prayers of the People, The Prayers of the Priest, and The Eucharistic Prayers.  This is not to imply that the Eucharistic Prayers are not proper to the priest, of course, but I am afraid the book on the priest's prayers is going to be a bit too thick — and expensive! — for the average Catholic to consider buying and reading.)