Alli, et al. -

A couple of friends of ours recently got married and the husband changed his last name.  It was the first I knew of.  I offered to take my wife's last name, since it wasn't a big deal to me, but we both kept our originals.

I've also heard legends of people getting married and both spouses changing their names to some new chosen name.  It's a nice idea, that in choosing to start a life together as a family that you get to choose the name your family goes by.