The Perfect Name

Jay and I spent some time today trying to figure out a middle name for the baby if it so happens to be a little girl (which I still think would be near-miraculous considering the odds). We love Madeleine for a first name; however, Steve and Maria are set on that name for a girl as well and seeing as they are due first (by three days) and that our children will likely be growing up together (as in seeing each other on special trips and occassions and being good friends), we don't want duplicate names. Supposing Madeleine were the first name...that's as far as we have progressed! We can't seem to find a good, meaningful second name. We don't want to do the whole "inherit a family name" thing because that just gets complicated. We want the name to be beautiful and have a nice (not necessarily Christian) meaning. I am tired of looking through baby name books.
Here is what we have thus far come up with (and none really grab us):

1. Alina (means "bright" or "fair")
2. Poopsmith (means "poopsmith"--Jay is particularly fond of this one)
3. Isabella (I don't know what it means)

So what I am wondering is if any of you know of, or have heard of, some unique, beautiful names that might suit a Legg baby with the first name Madeleine. Greg/Kris do not count.