As a follow up from my discussion with the Director of Curriculum the other day I began researching the choice used within our school district for accelerated learning. This is the program our school district uses "when they have a student with a single subject need for advanced curriculum". I contacted them and am in the process of previewing some of their courses but thought I'd share. If it is correct, the email I was sent said that I could purchase a single user license for $400 for a calendar year, for access to all 43 middle school/high school classes.
http://www.education2020.com/aboutus.htmlI will update when I know more or if we try any of the classes.
I also thought is was interesting that they have novel classes based on any one of 15 classics.