Sorry OP, but this is aimed at AtenRa:
seeing that you have actually reviewed and overclocked most of Bulldozers, how would a A6-3670k / A8-3870K compare to the FX-6100/FX-6200 when both are overclocked to achievable speeds?
With the price of Llano mobos and good power gating on both Llano and its mobos, Llano might tempt me. Trinity looks okay too but I expect that the desktop Trinitys will probably be released close to their max clockspeed and leave nothing on the table for tinkering. 2500K/3570K don't appeal to me since at those prices overclocking is no longer fun.
To the OP:
Even with a $800 budget, for any gaming the 7850 is a far better bet than the 7770 even if you reduce your CPU budget. If you looked at something like the i3-2100:
http://www.anandtech.com/bench/Product/288?vs=289
You'll notice that the 2500K appears a lot faster but if you scroll down to games, the difference isn't that much and here the price is something like £90 vs £150. Of course, future games may become more CPU limited but most of the games in Bench are not.