Davide Varvello has worked on a video course on Smalltalk. Now the first video is available and all the lessons can be pre-ordered here http://it.thinkcode.tv/catalogo/programmare-in-smalltalk/.
Actually the course is in Italian, but there will be an English version soon.
Here is the preview of the first course.
Download screencast (1280x720): .mov, 20.2 MB