thanks, I should add (and I hope this is somewhat obvious) that there is a team of about 7 or 8 of us in total. A lot of work goes into site/technical/video processing etc, and then there are 2.5 of us making the assignments.
The real hero behind the assignments is Jiquan Ngiam (http://cs.stanford.edu/~jngiam/) who is in charge and does most of the work. He is awesome, brilliant, very hard working, and I thoroughly enjoy hacking with him on the ML class until late AM.