I have to move my stuff from my current dorm to a dorm in a building nearby. Does anyone know of any good series on iTunesU that I could listen to while I carry my stuff? I am interested mostly in the science and technology lectures. I am trying to find something that is not too complicated (since I will carrying like 40 pounds while I listen and it will be hard to concentrate) but is still useful knowledge to have. I guess it does not have to be on iTunesU as long as it is educational and free. Thanks.