I suggest the book "How the hebrew language grew"
there you will learn the terminology - palatial, gutteral, dental.
also, I suggest including sources.e.g. specific html links as refs. 'cos often you bring up interesting things but don't mention specifically where you noticed it. e.g. a discussion on a forum.
D is dental. Tongue on teeth, behind teeth infact.
B and V are labial. Lips.
I suppose the sound baTH and the sound THe/faTHer, (different sounds of course) are dental too. tongue on bottom of top teeth. (THe being soft daled, THing/baTH being soft tav/taw)
Gutteral means throat restriction.
listen to judea going through the alphabet. The letters "Chet" and Ayin are gutteral forms of Heh and Aleph respectively.
http://www.archive.org/details/TrueHebrewPronounciationAnd, if you can write the word, and you know what vowels it has in written form. then you can pronounce the word however many e.g. 3 different ways. The written way you learn, is the universal thing.