They give me a ridiculous amount of performance, don't get me wrong. I'm just hoping that the new Northern Islands 40nm architecture will more efficiently utilize all four GPU cores, as this seems to be an ongoing issue for many 4-way CrossFire users. While the performance potential in terms of Hemlock's architecture design is more than sufficient at the hardware level, I'll be the first person to point the finger at AMD's Catalyst driver team for insufficiently supporting advanced multi-GPU configurations, or even realizing that there are enthusiast users who own such configurations. Only since Catalyst 10.8 have the drivers actually made any good use of my Quad-CrossFireX configuration on Windows 7. I'm not even kidding - for the entire first half of 2010, I felt like I had 8.6 billion useless 40nm transistors just sitting in my system, all thanks to some clowns who don't know how to code drivers correctly.