If you have the Playstation Move you might check out this deal available today. You can get Michael Jackson The Experience for $16.99.
I believe shipping will be $4 or so, it is free if you spend $25 or more.
The reviews are nearly perfect on this one!
Dee says
I got it for Wii right before Christmas. It is a very fun workout. Especially for an old broad like me. Michael Jackson and I are/were the same age. I danced to some of these songs in college.