Need help with naming my character...

[benebess.livejournal.com]

First time posting here,
i was wondering what you guys think of the name Laurence, but for a girl... ? 
i personally love it, but my sister and some others said it was no good. :P


also: 
I am writing a fantasy story and my main character is a boy named Elliot.
I need a second and last name for him, any ideas?
He is a modern kid, aged 16. Not from the old times or anything... just something simple and nice sounding.
Hope it's okay to post this here. :)