Wirelessly posted (BlackBerry: BlackBerry8530/5.0.0.1030 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)
Call AA, and ask about award availability on QR for CDG-DOH-CPT, or CDG-DOH-JNB, connecting to BA (Comair) for JNB-CPT.
AA recently changed their award-routing rules to allow connections in DOH when traveling on QR for certain awards. I'm not sure if such a routing is allowed on a Europe-Africa award, but if it is and you can find QR award space, you'll save a bundle in $$$, and will probably have a better in-flight experience.