Armando del Corral commented
Add a Tax course. I always use the quick videos with quizzes to refresh during the semester and right before finals. Tax has concepts that can easily be placed into quick videos that I am most definitely sure a lot of students who take the course will benefit from.
I echo the federal income tax idea.
Jaffe, Ethan commented
Fed. Income Tax is not on the bar in every state. It would, however, be helpful to have something like this even if you don't plan on taking the class, because tax issues come up in everything from the treatment of damage awards to decisions on entity formation.
This is a common 2L course at many law schools.
Fed. Income Tax is on the bar exam and is necessary for passing the bar.