Where did you get the wall decal?!
It's actually paint. You can see it as a work in progress here: http://ouraustinhome.blogspot.com/2010/04/in-progress-nursery-mural.htmlWe used a digital projector to project a map on the wall. And then it was just making sure we painted inside the lines. It took two days because it took two coats of paint, but it was much easier than I thought it was going to be.
Can you tell me where you got the airplane hanging from the ceiling? It's awesome!
It was already in the room when we moved it (it was a kids room for the previous owners too). We just never got around to changing it, and then it was perfect when we set up our travel nursery. That being said I know you can find it on Amazon.