I'd get the ASUS Rampage Formula IV( i have one and its been a very good board). As for the video card what will you be doing with it(gaming, CAD, video editing, etc)? There are many cards that support dual link dvi but some are better at certain tasks than others.
The rig will be used from everything from daily work, gaming, TV viewing (via Ceton Tuner), and heavy on the Video editing as well. I may also get a 2nd Dell U3011 monitor, so something that supports dual monitors really well would be good too. I'm willing to spend more for stability, performance, and awesomeness.