CheleK (and to those who are interested),
fresh from Youtube, here's Shinzen in action guiding a student in a meditation. gives you a feel of how Shinzen conducts his retreats sessions ;)
Part 1 of 4: http://www.youtube.com/watch?v=QkI4S9IqrXI
Part 2 of 4: http://www.youtube.com/watch?v=8Zz_BfTdp4E (focus on change. my favorite of the Five Ways

)
Part 3 of 4: http://www.youtube.com/watch?v=Xb8yiNwFBtA
Part 4 of 4: http://www.youtube.com/watch?v=WVzuhfc1wF4
enjoy!
~C