Regarding the "drow" pronunciation:
Way back at Gen Con '88 (I had to check my signed Player's Handbook to verify the date) my friend & I were having an argument about this. I insisted drow rhymed with row (as in "row, row, row your boat") and my friend Mark insited it rhymed with cow.
We cornered Gary Gygax at the bar, and while he signed our handbooks we asked him, and he gave an apologetic look (the "I've made people unhappy with this answer" sort) and said gently, "I've always pronounced it 'drow'."
My friend was right. (And I still say it my way.) :\