Essentials is fundies light, correct? What kind of time and money commitment are we talking about?
Brian W. wrote a good explanation of the Essentials course - Misconceptions of UTD Essentials and Intro-to-Tech. That should give you more insight on the course.
As for time commitment, it's 3 full days (approx. 12-14 hours per day) plus an evening pool session (approx. 4 hours).
Costs are as follows:
Instructor fee - $450
Registration/Class materials - $99
Pool fee - $25
Since I'm local to MoCal, there's no travel costs to cover.
Please let me know if you have any additional questions.