Computer build for Minecraft?

You should get at least 60+ FPS on maxed out settings

Still undecided?

nice switch to an APU but there's one thing you didn't take into consideration. A later upgrade of the cpu is hardly possible and the integrated gpu of the A10 Richland is much worse than a dedicated card.
when you switch to "distant view" in Minecraft the integrated HD 8670D can't cope.

I've rebuilt my previous suggestion with cheaper components and the price is only slightly higher than the one of your APU build, including the OS.
http://pcpartpicker.com/p/2rB7j

with this setup you will reach approx. 70fps on high settings.

P.S.
did you got my mail? I've explained therein all about how many fps can be expected.

I would wait till February to get the kaveri apu its a BIG improvement from a10 6800k its out in February and you don't need a fm2+ (unless your actually buying kaveri apu the 6800k only uses fm2 boards you can use fm2+ with 6800k but you may as well get an fm2 board for $40