Check JeffCooperBooks.com, Paladin Press, and the Gunsite Pro-Shop for the books. Cooper's Commentaries may be seen at thesconce.com. The Gunsite Pro-Shop also has the Mental Conditioning for Combat video, which is the old "Wednesday Afternoon Lecture" from the 250 course. They're all worth the time and money to go through.
Another excellent video from Morris Video is Jeff Cooper's "Handgun Fundamentals" (sometimes marketed as "Handgun Safety"), that was sold for some years as an NRA publication. Copies of this turn up on eBay from time to time. That video includes safety ("The Four Rules"), action types, grip, stance, sight picture, trigger control, maintenance (he cleans his old Pachmayr Combat Special in this section), and shooting demos by The Colonel, Robbie Barkman, and Clint Smith. Very valuable information-briefing, densely packed into 55 minutes. I've never seen so much basic pistol information compressed into such a short demonstration anywhere else - even at API (and Gunsite)!
Hope this helps!
- KBS