How do you narrow down a huge list of names???

I have compiled a list of about 30 girl names and 20 boy's names. I'm having a world of trouble trying to narrow them down. Here's some of my faves...

Girls
Isabellah
Madison
Brooklynne
*Piper
Hayden
*Peyton
Mystic
*Crystalyn
Willow
*Indigo
Annika
Caleigh

Boys
Domynic
Garrette
*Rielly
Lane
Brayden
*Wyatt
Brady
Keenan

This is driving me crazy. I know, it should be fun, not frustrating. There are just so many names and combinations of them that I am loving.... And this doesn't even include a middle name. Argh!!!!

Any ideas?

Awww Isabella is the name we picked out for our little one (if it's a girl)
so I definitely think that's a great choice! but i like all the others too!