Well, I finally found the voices I was looking for. . .
The tenores Bitti/Sardenia, please :
homepage in english, good for basic informations:
http://www.tenoresdibitti.com/homeengl.htm
then I would recommend the audio/video page, a bit further down I very much recommend the songs piece by oiece, to give you an idea of the spectacular unique voice tradition around Peter's sardinian residence(

):
http://www.tenoresdibitti.com/esempiengl.htm
enjoy!
(no, I don't mind their beliefs at all, as long as they sing, hehe in case anyone wonders about the pope relation. Remember, I still love to sing the oratorien etc.)