I really need to get up to speed, and on Embedded last week they had a prof from Arizona State that has what sounds like a very good kit to accompany a free online course.
I really can't afford the $400 for the kit right now, but it's basic stuff. I picked up everything I don't already have sitting around for about $80 and will try to power through this in the next few weeks. It does machine vision and kinematics. Also sensors and motor control but I already know that stuff.