I would look at curio cabinets that have glass doors to help keep the dust off your displays. It would also be nice if they had drawers or enclosed cabinets below so you could store things without them having to be seen all the time. As mentioned earlier, built-ins would be nice too, but those are usually not included or lots of money to have installed. Good luck with your doll room, that is my dream one day when I get a house! Be sure to post pictures when you find the perfect storage system!