not bad at all, tho i still prefer my main rig even if its a FM2+ and not a AM3+
ofc if you use above 4 core the 8320 is good (IE: video encoding, crunching, random.) a R9 270 would be cheaper than a 760 but you also could take a 270X, 280(if you are lucky enough to find one with a price not over inflated by the Sh*tcoins madness for a 280/280X) for a bit more of that price and have the benefice of Mantle if it get the attention needed.
http://pcpartpicker.com/p/2SY7t 790$ shipping include ... oh well not totally what i have but i did compensate the value of what they don't have (case and PSU) to my actual "new" price where i live and hell if i paid 1/2 of that price that was the maximum, mostly 2nd hand but the essential is new
CPU/MOBO/GPU/PSU
if i redo it like yours, no PSU/HDD/SSD a bit more ram and the 270 i get
http://pcpartpicker.com/p/2SYkc 560$ shipping include
if i redo yours and add some of what i would call an option :
last minute: oh wow i guess the 99.99 for the 8320 is locally ... i get it at 153.83... now i know why i did chose the Athlon X4 760K : not much difference in game and nearly half the price (and a A88X board are high end in the FM2+ board unlike the 970 who are lower end and more suited for a 6300 and under than a 83xx)
i get 572.79$ due to the price of the FX being back to normal
otherwise it would be a bit cheaper, the R9 270 needing also only 1 6pin pciEx you could be able to CFX it later for further upgrades,
as for me my luck would be that AMD will do a Kaveri Athlon X4 like they did with the Llano and Richland and i would have a upgrade for my FM2+ for later, other than a A10-7850K