XBox 360 Games

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I know, I know, I posted under fitness and exercise... BUT it's because I have discovered games for the 360 that track calories burned/ serve as a workout/ get me motivated to exercise! Do any of you own these games? (Nike+ Kinect Training, Jillian Michaels, Zumba, ect..?) If so do you like them? Do you absolutely hate them? Let me know! I was told to pick out a Christmas present for me... and I think I'd like this.. (since it's much easier to work out at home than to try to find a sitter to go to the gym.. that's 40 minutes away -_-) Hellllp!

p.s. I think it's a lot easier to work out when it's "fun"