D.M.
we had a "naming ceremony" for our oldest, and drew a bit from the jewish tradition for that (but definitely in a very loose way). we had a friend "officiate", and then asked our friends and family to stand up and say a few words about their hopes and dreams for our baby as she grew, and then we had everyone say a "we do" in response to our request for their love and support to her as she grows. i had also set up tables with scrapbook pages and supplies for everyone present to make a page with a note to her stating their wishes for her, then after the party i put them into a scrapbook which i will give her when she graduates high school. we had food and a cake and it was beautiful--we videotaped the whole thing.
we are doing something similar for our second daughter next weekend, but we are calling it a "welcoming ceremony". i plan to do the same sort of thing as we did the first time. i figure, every religion or culture has some way of acknowledging the arrival of a baby...our baby is no less important!
Good luck and have fun. This is a very special time for your family and child!