Best 750-800$ gaming pc

What will you be doing with this PC? Be as specific as possible, and include specific games or programs you will be using.

I will be playing dayz standalone and arma 3 possibly bf4

What is your maximum budget before rebates/shipping/taxes?

800

When do you plan on building/buying the PC?

next week

What, exactly, do you need included in the budget? (Tower/OS/monitor/keyboard/mouse/etc)

I just need the tower and a OS

Which country (and state/province) will you be purchasing the parts in? If you're in US, do you have access to a Microcenter location?

USA Oregon, no

If reusing any parts (including monitor(s)/keyboard/mouse/etc), what parts will you be reusing? Brands and models are appreciated.

I have a cm storm mouse and keyboard and a dell s2440L 24" monitor

Will you be overclocking? If yes, are you interested in overclocking right away, or down the line? CPU and/or GPU?

In the future maby

Are there any specific features or items you want/need in the build? (ex: SSD, large amount of storage or a RAID setup, CUDA or OpenCL support, etc)

a optical cd drive and maby LED lights, I would prefer a AMD cpu

Do you have any specific case preferences (Size like ITX/microATX/mid-tower/full-tower, styles, colors, window or not, LED lighting, etc), or a particular color theme preference for the components?

corsair 230t or somthing similar

Do you need a copy of Windows 7 or 8.1 included in the budget? If you do need one included, do you have a preference for one or the other?

Windows 8.1

Extra info if required: