Ones, that I would focus on:

Model selection http://www.ml-class.org/course/video/embed?video_id=62&s...

Diagnosing bias vs. variance http://www.ml-class.org/course/video/embed?video_id=63&s...

SVM Optimization Objective http://www.ml-class.org/course/video/embed?video_id=72&s...

Large Margin Intuition http://www.ml-class.org/course/video/embed?video_id=73&s...

Mathematics Behind Large Margin Classification (Obligatory!!!) http://www.ml-class.org/course/video/embed?video_id=74&s...

Kernels I http://www.ml-class.org/course/video/embed?video_id=75&s...

Kernels II http://www.ml-class.org/course/video/embed?video_id=76&s...

Using An SVM http://www.ml-class.org/course/video/embed?video_id=77&s...

... yep, you don't need to login.