A friend just gave us this game which, happily, plugs directly into a computer instead of a tv. I turned it on for the kids to try...and discovered that it is TONS of fun. Seriously, who wouldn't like "dancing" to Oh Where Is My Hairbrush? This may be my new form of cardio. :)
Disclaimer for those who might want to get it: the pad tends to slip when you get to harder levels and move faster, leaving you wondering why you're "missing" so often. But if you don't get too hung up on the score, it is still a lot of fun.