2U2 room advice

My son is turning 1 next month, and I'm having my daughter in January 26. My son has coslept with me since birth, I do not want another in my bed. I have a extra room I was turning into the nursery, but know thinking maybe I should give it to my son, do I get him a crib? Or a toddler bed? Who would you give the room to? Nursery or toddler room???