WHAT'S IN A NAME?

My wife has charged me with giving our son an English name to go alongside his given Thai name — Chaterin (spelling?) which means "royal" or "king-like".  This, as I understand it, would serve as a legal middle name and as something to call him replacing his nickame, Gaow (Thai for the number "nine" so given because a friend of the family was a fan of the San Francisco 49ers and he was born in the Western year of 1999).

I've just started making a list of names I like and finding out what they mean.  I think a name is more meaningful if it means something interesting or there's a definite reason for picking it.  For example, my first name — Mark — means "defender" or "warlike" (I've never heard a story of why this was chosen for me).  My middle name is Joseph ("addition") and was given as it was my father's middle name.

Here's a not-so-short list of possible names for Gaow, and their meanings:

Abraham (Hebrew - "father of many")
Alexander (Greek - "great protector")
Alonzo (Spanish - "joyful"; name of my mother's father)
Gabriel (Hebrew - "power of God")
Horatio (Latin - "timekeeper")
Maximillian (English - "the best")
Montgomery (English - "powerful")
Ronald (Old Norse - "leader"; also, my own father's name)
Solomon (Hebrew - "peaceful")
Vladimir (Slovak - "well-known ruler")
Xavier (French - "bright")
Zachary (Hebrew - "Godly")

I'm also planning to look at song titles and characters in some of my favorite songs for inspiration (no, I won't be naming my son "The Magic Rat" from Springsteen's "Jungleland"...).  Perhaps literature as well...

So friends and family, do you have any favorites you'd like to recommend as a good middle name/nickname-replacement for my new son?  Email me, or add a comment to this post.  I plan to make the final decision a week or so from now (subject to Tim's approval, of course).

UPDATE:
The names "Vladimir" and "Xavier" are out because Tim can't even pronounce them (it was hilarious getting her to try, though).  It's a shame because I always wanted to have someone to whom I could yell, "Hey Vlad!"