I don't know many workstation boards, but I do know that Intel's board have surprising low quality. Frankly, I can't think of any board that's marketed as "gaming" or "workstation" (outside of server boards). I'd just grab a high quality board, like the Gigabyte GA-X58A-UD3R.
Also, I'll point out that you'll need a third stick of RAM to go with the 930. It uses triple channel RAM. I'd look for an exact duplicate of the sticks you have, just as a single 2 GB stick.