i would take all the systems i have and put them in those ikea glass display things :
i collect transformers and im planning to do the same thing as:
there is nothing more awsome then walking into someones house and seeing a nintendo and gameboy beside each other in display, and still be able to bring it out and play with it. only cuz it happened to me. i walked into a friend of a friends house and he had the same setup. he had his genesis and game gear and dreamcast all on display. it was bloody epic.