Beetle, you are right. But Didier is the only one who has a working FireBee including a Radeon at the moment. This config is pretty close to CTPCI with Radeon of course. But we are investigating recently with our Backplanes what needs to be done to sell them to end customers. We need a 64Bit backplane at the FireBee (NEVER use a 32 Bit one! Someone killed his Bee by plugging it in the wrong way! 5V vs 3,3V). And Didier soldered his "backplane" by hisselve (see the pictures at his website), and our solution does not work right now. Markus Fichtenbauer is investigating, and we can hopefully offer a working and cheap backplane in a few weeks.