From Danielle Bean comes this post about cosleeping with multiple children. I am thankful that she used this topic as one of her discussions as I am trying to examine all the different ideas about cosleeping. I will probably post again after I read the comments.
As for my answer to the question, we have a toddler bed next to our bed for our oldest and a cosleeper on the other side for the baby. Since the baby is rapidly becoming a toddler and nursing frequently through the night, we are currently exploring new options until we are ready to give them their own room together.