I have an itch to go crossfire but I'm not sure what it entails. If you see my specs I currently have an HD4850 and a 790GX board. But I have a few questions. FYI I already googled these questions but I want feedback from the TPU community. 1. Is it better to match brands? I currently have a Visiontek so should I get another one? I ask because I can get some good deals on a HIS card. 2. Is it difficult to get games to run in crossfire? I'v read you sometimes have to sacrifice a virgin under the full moon. 3. When running crossfire on my board it cuts the speed from 16x down to 8x. Does crossfire make that much of a difference to justify this? 4. This question is a n00b one but with my board will I still have to use the little crossfire ribbon?