The type of card depends on what it will be used for. I have a few engineers here who prefer the Radeon cards to Firepro. If the system is being used for Design and drafting I recomend a Firepro but if it is being used for gaming go with a Radeon.
My budget is around 1400. Don't want to cross 300 on the mobo. Pushing it with 329 on ASus p9x79 pro. Is ASrock support good. The price is definitely tempting.
The 3930K is a great processor but if you need any sort of GPU you won't be able to obtain it on a $1400 budget.
I'm not entirely sure about Asrock's technical support - I originally got the Z77 Extreme 4 and when I was having issues with it, I e-mailed them about it and it's been two weeks and I haven't received anything other than an automated e-mail.