With obtaining a projector, if it's possible, there's always the projectors in church libraries. Nothing like playing PS2 on a projector using a white wall in the gym. Maybe you could even play DDR as some activity with your ward or whatnot.
Remember, when The Board tells you that DDR isn't going to be allowed in the lecture halls, it's one of the things that you'll never get permission for. However, if you just go do it, chances are nobody will tell you not to.
-that one guy