DDR would be interesting to play on a home system, you wouldn't have all the awesome lights of the arcade version, but you could hook it up to your super bassing stereo, which might actually make up for it.
I've never actually seen a home version of this game. Now that I think about it....I don't even really know any one IRL who likes it. I'm going to try and talk someone into playing it with me in the arcade though
Just Dance 2 looks like it might be fun.