Thanks, TH for bringing this platform to the light.
A few things I'll add:
The baseline build is fine. Pretty much every member of the Overclock.net 750K/760K fan club is pushing an HD 7850/7870 (R7 265/R9 270), so the build is balanced very well, but slightly favoring the GPU, which is good. The Super Flower PSU is not available in the USA. SF does not ship here. You can get SF Golden Green PSUs rebranded as
Rosewill Capstone though. I have one in my 760K rig, imagine that
Now, on the enhanced build I say go with the 760K for $10 more.. What you get with this CPU is the improved Richland memory controller. It's even better than the ones in the FX Visheras. Good 2133CL9 or 2400CL10 is not that much more expensive, at maybe $10 more. This combination will make up for lack of L3 cache, as THE RAM will have close to the same latency as the L3 cache on the FX chips. You can verify this in Sandra or AIDA memory and cache latency tests.
$40 for a CPU cooler is way too much to pay for a CPU this cheap, as at this point you might as well have gone with a faster i3 which can use the stock cooler. You shouldn't pay more than $12-18 for an aftermarket cooler, just something with some basic heatpipes will do. The TX-3 would be perfect at $18. No need for fancy TIM, just use the included stock thermal grease.
And again, fix the PSU listing, as SF doesn't ship to the USA.
Thanks again.