I'm getting ready for a whole system upgrade, and I'm contemplating a Crossfire setup. The only probelm is I've never done it before and I don't know anyone who has. I'm wondering is what its REALLY like to have crossfire in your system. I've read plenty of performance reviews on crossfire and SLI, but aside from performance, are there any annoying things about crossfire that I should know about before I invest in it? Things like ease of setup, compatibility issues, crossfire motherboard issues, fan noise maybe? I just want to hear what people think of crossfire in terms of everything BUT performance.