We have the Wii and my kids both have DS's. The Wii Fit is very fun and we're getting Dance Dance Revolution and the Outdoor Adventures for Christmas (actually they are presents for me! LOL!!!!!!). Guitar hero is very fun and so are the Star Wars Lego and Indiana Jones Lego games. Big Brain Academy is fun and so is My Word Coach.
Lots of kids do play too much, but if you set the boundaries they won't. My kids know how much time they get to play and then that is it. If you start off with rules in place and stick to them it shouldn't be a problem. Lots of the games are very, very fun!!!!
