Are APUs even worth it if you're getting a dedicated GPU? I always thought people got APUs for the built in graphics.
Also Newton's built is overpriced. There's no reason you need 16 GB of RAM for gaming. I use 8 GB and run into no issues, even with a dozen chrome tabs open and several background programs. You could probably even get away with 4 GB or 6 GB if you wanted.
If you're looking to make a budget gaming PC for that price, keep in mind it won't run games maxed out, and only on low-medium.
Anyways, here's my suggestions to change with his build:
-Keep the CPU
-Only get 8 GB of RAM, not 16.
-Don't bother getting a video card now if you can't afford it, save for a potential future upgrade. Don't buy a cheap one for less than $100, you won't see much of an improvement over the APU.
-Get a Case/Dvd RW drive, you'll need it to build it.
-You'll either need a wireless PCI card or a USB adapter if you want to use wifi and not ethernet(wired internet)
-if you're planning to use a lot of usb ports, get an ATX fm2 Motherboard, not Micro-atx
Windows 8 vs windows 7 is mainly preference based, however I'd say windows 8 is more future proof, and it only windows 8 supports directx12 when it comes out.