After catching up on over 400 e-mails from being out of town for almost 3 weeks, I was pleasently surprised to see this post from Room Remix-The Blog about Atlanta designer Sherry Hart's rustic modern nursery. The barn doors behind the crib (above & below), were originally used as a headboard in a bedroom in her home.
She mixes modern elements such as the Sparrow crib by Oeuf, the Expedit bookshelves from Ikea, and an Abacus from CB2 with a rustic dresser, light fixture and linen chair and pouf.
Also notice in the photo above how the ceiling is painted a deep mustard yellow? If you like white walls but don't want a stark feeling in the room paint the ceiling. She also pulled down the paint about 12" and added a strip of trim below the ceiling line to bring a little color into the walls and visually bring the height of the ceiling down. A very nice touch and easy to DIY.