Decor: Kids Playroom

Continuing on with the theme of playrooms... Julian (my husband) told me that the living room had to go back to being an adult only zone.  I have opted for the boys to share a bedroom and then have a separate play room which they can muck things up, paint on the walls etc.  That way if things get messy I can just close the door and Julian with his OCD won't get a hernia when he sees the state of play.  

I want something playful and colourful, and gender neutral as hopefully one day there will be be some female additions to the brood.  Have been on Pinterest alot of course, and I am thinking, lots of colours, baskets and crates for toys, and decals on walls.  Thoughts?