Would take another look, from researching arocks, they are ok boards but, in the bios they do have limited settings, its basically a downgrade from asus. Like Bios flashing, asrocks bios isnt in a good enough shape as i've seen for reliable board structure. Would defenantly look into ASUS and Gigabyte 100%.
the 780g as i've seen is around $89.99 and $94.99.
should look into them, check them out.