I wouldn’t have thought to go to Microsoft Store  to get an Xbox 360 but WOW are their prices lower right now than Amazon!
They have all kinds of different bundles  and an online chat service if you are needing some help making sure you select the proper bundle.
The Xbox 360 Nike+ Kinect Training Console Bundle with 2 years of Assure is $249.00.
The Xbox 360 Limited Edition Halo 4 Console is $349.00 (I couldn’t even find this on Amazon).
And check out the Limited Edition Kinect Star Wars Bundle for $399.99.
Check it out- this is a GREAT chance to finally scratch this item off your list.