have you already bought these components?
things i would consider changing is the ram for 16gb of samsung green(in my sig) its dirt cheap in the u.s and overclocks very well
other thing would be the psu,do you really need 1220 watts? its overkill imo,750-850w at the most is plenty juice for these boards/cpu's,you could save yourself some money on those two components and put towards a single gtx 670???
oh and how cheap is the samsung 840 pro 256gb compared to the samsung 830 256gb? if its similar price choose the 840 pro,its alot faster