Saint-Just et la Force des Choses (Part 1)
Saint-Just et la Force des Choses (Part 2)
La Terreur et la Vertu (Danton)
La Terreur et la Vertu (Robespierre)
The extra benefit of this is that it downloads it as a DivX file, which you can then burn to a dvd, as opposed to buying a French Region 2 DVD that might not work with a US dvd player. The site's a little confusing, but I figured it out.
These movies are, of course, all in French without subtitles.