My daughter is Lily Marie. I've always loved the name Lily, so that was easy. We used my ex-husband's mom's middle name. We thought it would honor her and compliment Lily's name as well.
I think it's useful to look online at lists of names and perhaps buy a baby name book. It is a lot of fun to page through them and see the different names.
I like looking at family history as well. There may be names in your family you were not aware of that call to you. Have a good time with it. :)