Anyone think this is a good gaming pc build?

If it meets or exceeds the game(s) basic required spec's, then you'll be ok.

Simple answer is no its not a "good" gaming pc it's what is called a low-end gaming pc. First off the only reason to get amd's A series apu's is for the integrated graphics which you don't need due to the dedicate gpu so get a x4 760k also you don't really need an 88x mobo unless overclocking. Don't botjer with an extra case fan and just get the cheapest ram and dvd-drive possible, now that shouldn save you a bit of cash to upgrade your gpu really for gaming the minimum you want is either a 750ti or 260x so try to get one of them if possible. Also that case is a rather expensive case for a low end build, you're better of getting a case under $40 and putting the extra money towards a better gpu

I'd say no. I would opt for an Intel LG1150 build using a Pentium, that will be similar money and the processor will outperform the A6-6400K right now (especially if you get the G3258 and overclock it) and give a future upgrade path to a Core i5 or i7. Also, weaksauce graphics card. Get better if you can afford it.

To save money you can drop the aftermarket CPU cooler, maybe drop the optical drive if you own an external one or else get a cheap read-only drive, and perhaps get cheaper RAM. Do stick to a quality power supply but you might drop the wattage to 400 or 450W, and get a decent budget motherboard not a dirt-cheap junky one. That should give you a bit more money for a better graphics card.