Im new to this site, I absolutely love Gregorian. I am eager to by albums, but cant get them in the mainstream shops,help anyone? My favourite is Voyage Voyage.
Welcome to the site. In answer to your question, your best bet is going to be to buy the albums online.
Hope that helps!
You can get just about all the Gregorian albums on Amazon. And if you'd like to see the "original" Voyage Voyage, go to YouTube and type in "Desireless"... you'll see the french new-waver who first sang the song (I'm assuming the video was made in the 80's, by the looks of it).
... and another great video is Madonna's "Frozen"... wonderfully Gothic....