So I just tripped over a 2nd 6850 and want to get my feet wet running two cards for the first time. The H55 board that I'm using now limits the 2nd PCI-E slot to x1 so that just won't do. What board(s) would you recommend keeping in mind that I need to carry over my current CPU, keep USB 3.0 support and have a budget of around $120 Canadian? The current front runner is the Gigabyte P55A-UD3 but it still limits the 2nd PCI-E slot to x4. My biggest concern is that I do not want the chipset to the be bottleneck if one exists. I'd also like to pick up SATA 6Gbps support if possible. Discuss!