So I realized that building a computer is way the hell cheaper than buying one, and I've located some parts, but that leaves me with the question of... are they any good?

This is what I have so far, the total cost of it all is $770 (I also have a keyboard/mouse, but they're in a different list and IDC if they're any good).

-http://www.microcenter.com/single_product_results.phtml?product_id=0427565 AMD APU with quad-core 4.0GHz and integrated Radeon R7 graphics

-http://www.microcenter.com/single_product_results.phtml?product_id=0406088

-http://www.microcenter.com/single_product_results.phtml?product_id=0413580 Basic chassis

-http://www.microcenter.com/single_product_results.phtml?product_id=0355812 Basic sound card

-http://www.microcenter.com/single_product_results.phtml?product_id=0408370 16:9 1920x1080 monitor

-http://www.microcenter.com/single_product_results.phtml?product_id=0387518 RAM 2x 4GB

-Windows 7 Home Premium 64-bit

-http://www.microcenter.com/single_product_results.phtml?product_id=0426011

-http://www.microcenter.com/single_product_results.phtml?product_id=0398271

There's also a graphics card which is unnecessary due to integrated graphics, but better, which adds $70 (total = $840):

-http://www.microcenter.com/single_product_results.phtml?product_id=0425144

So yeah, is all of that any good? (Note that by "any good" I mean "worth $840", not "spectacular". I just need to get maybe 15-20 FPS on things like Skyrim medium graphics).