This name is on my official faves list; it always reminds me of Rutger Hauer, on whom I've been crushing since I was sixteen (nearly 23 yr!). He played a knight named Étienne de Navarre in the movie Ladyhawke. Not the best movie ever made, by any means, but fun to look at him in it.
I pronounce it ey-tee-ENN, if you can tell what that sounds like; the first syllable is somewhere between "eh-" and "ay-" and is minimally stressed; the second syllable is pretty short; the third is the longest and most stressed.