I finally found a CD with simple, beautiful renditions of "Pange Lingua Gloriosi," "Ubi Caritas," "Regina Caeli," and so forth. Now I can teach my Latin students some Gregorian chant without having them laugh at my tonedeaf attempts at "Parce Domine." Thirteen year olds are harsh.

The name of the cd, in case you have similar objectives, is O Lux Beatissima, put out by Cantores in Ecclesia. 35 tracks, 10 bucks on iTunes...