Currently i'm using the Asus Xlite pro cam to do human recordings, this purly due the fact that the Kinect motion scanners have a minium range of 1 meter (the Asus has 0.8 meters as minium). The resolution of both scanners are the same and if you don't have a huge room to make the scan then the asus is an ideal solution. (bought the Asus for around 140 euro's, though I don't know the price of Kinect currently).

Other objects side's human (shapes) are large objects, like chairs and desks. Smaller objects are almost undoable (like a remote controle).