An awsome VR idea would to have just a comfortable full-body jumpsuit that you could easily move around in. Then you are connected by elastic cables to the cealing of a huge room with the same basic shape as where the vr game takes place. So like if your on a mountian or something, you have the cables on your back and kind of have like a big indoor mountian climbing type thing to get the real feel. You would be able to jump around every which way and bounce of the walls. Do some wall climes ala matrix. The VR world would just seem larger... This would be a possiblity, although an expensive as #### one.