Just like the title says -- does anyone know of/have any experience with a complete eCourse to developing WordPress themes from scratch?

I.e. creating the design in photoshop, translating it into HTML code, etc.

I'm not looking to become a web designer or anything of the sort, but I just think it would be a very useful skill to learn (plus, I want to give my own blog a complete redesign and a unique look).

Thanks!
JR John