actually it would be better to get a intel+descrete
http://www.xbitlabs.com/articles/cpu/display/amd-a8-3870k_7.html
I'll be working on one for you
this will absolutly destroy any APU build you can do
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.988077
http://www.newegg.com/Product/Product.aspx?Item=N82E16820313289
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182199
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130770
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136769
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147023
okay in the games they played the G850 with the 6770 was scroring higher than everything else, this tells you the 6770 was more powerful than the dual graphics setup
in this benchmark comparisons it tells you the i3 2100 is the best cpu of the 3 therefor less likely to be a bottleneck in the future
http://www.anandtech.com/bench/Product/399?vs=404
http://www.anandtech.com/bench/Product/399?vs=289
http://www.anandtech.com/bench/Product/404?vs=289
in the earlier bench mark it stated the 6770 did better than the dual graphics solution, thats okay, but well want something a bit beefier than a 6770 AND that fits in our budget, that would be a 560SE (5770s are nearly identical in perfomance)
http://www.anandtech.com/bench/Product/538?vs=543
not only is this build faster but, you are using more towards the lower end of parts for it, if you used FM1 apus you can't upgrade the cpu any higher or have ditch everything if you want a better GPU with socket 1155 you still have i5s and i7s if you want more performance
also I would buy all from one place, not all over the internet (I prefer newegg)