I remembered the singer's name whose voice caused me to shut my boss' door - Renata Tebaldi.
Her (Shubert) Ave Maria here -
http://www.youtube.com/watch?v=IPvTZ9cOsVg
Even now that I like opera, I more inclined to like Jesse Norman's version, here, though I like both -
http://www.youtube.com/watch?v=maZHi4C6Cf0&feature=related
More.. - Leontyne Price with Shubert's -
http://www.youtube.com/watch?v=hSttd2RJ5i0&feature=related
Kiri Te Kanawa and Shubert's -
http://www.youtube.com/watch?v=dRxcrPiT2k4&feature=related
Kathleen Battle, with Gounod's Ave Maria -
http://www.youtube.com/watch?v=Z_-uUjsx3ao&feature=related
Andrea Bocelli, with Gounod's Ave Maria -
Bella, I like Bocelli too - I used to play the Romanza cd to death, there is something about his voice - but I've read a lot of negs by people who follow opera closely.
Well, heck, I like them all, including Ms. Church and Ms. Brightman
Today, I like Jesse's and Kiri's versions best, in addition to the Pavarotti Caracalla concert Shubert... but I speak from ignorance on all this.