$89? My god, what retailers do you have? It's $120 or more wherever I see it!
I can't form an opinion on which to buy because I'm a biased frequent AMD customer, by the way.
I think, though, that, since the A-series processors are derived (even if greatly derivative) from Phenom II (and the 6600K is overclockable!), and the G3220 is a pentium G, you should get the A8, or possibly even an A10-6800k/5800k, since it's obviously in your budget if the G3220 + GPU is in your budget. (I've seen no GPU worth buying to replace intel HD that costed less than $50)
I can't form an opinion on which to buy because I'm a biased frequent AMD customer, by the way.
I think, though, that, since the A-series processors are derived (even if greatly derivative) from Phenom II (and the 6600K is overclockable!), and the G3220 is a pentium G, you should get the A8, or possibly even an A10-6800k/5800k, since it's obviously in your budget if the G3220 + GPU is in your budget. (I've seen no GPU worth buying to replace intel HD that costed less than $50)