While looking for something else, I found the AA UK OWE travel agent pages, which I haven't seen referenced here before. Apologies if this is old news. No pricing, but it does include all the rules. They seem to be wrong in a couple of places, inevitably, but also include a lot of examples of correct and incorrect itineraries and might be something to add to the FAQ at the top of the page. Here's the link.

http://www.aa.com/content/uk/agency/...Explorer.jhtml

Here's one thing that surprised me (ie, I think they are wrong):

is claimed to be allowed, despite the AF code, since it's operated by BA. Or are oneworld-operated, non-OW coded flights allowed?