Not sure about your reports; as one data point I'm taking both AI and ML courses while working full time; they're quite doable (and I'm a rather average lw forum member as far as math is concerned). I have the impression at least the ML course has been slightly dumbed down for this wide an audience.
The ML class has definitely been dumbed down. The on campus class' notes and assignments are publicly viewable here.
[The Stanford-class.org scheme seems to be adding new courses every few days. Instead of a new post each time a new class is added, I commit to keeping this post stocked with links to all current course offerings until at least January 2012.]
Complex Systems
Model Thinking
Electrical Engineering
Information Theory
Civil Engineering
Making Green Buildings
Medicine
Anatomy
[Cancelled]
EntrepreneurshipThe Lean LaunchpadTechnology EntrepreneurshipComputer Science
Computer Science 101
Software as a Service
Human-Computer Interfaces
Natural Language Processing
Game Theory
Probabilistic Graphical Models
Machine Learning
Cryptography
Design and Analysis of Algorithms
Computer Security
[Ran Sept-Dec] Machine Learning
[Ran Sept-Dec] Introduction to Artificial Intelligence
[Ran Sept-Dec] Introduction to Databases