PC Build (800$) No OS, No Monitor

Solution
Very solid build. The only two things I'd change are:

1. CPU: If possible, get the Core i5-6500. It's not that much more than the 6400 and you get a lot better clock speed.
2. Add a CPU cooler. I suggest the Cryorig H7. Even though it's a locked CPU, running intensive games will still make the stock heatsink work really hard.
Very solid build. The only two things I'd change are:

1. CPU: If possible, get the Core i5-6500. It's not that much more than the 6400 and you get a lot better clock speed.
2. Add a CPU cooler. I suggest the Cryorig H7. Even though it's a locked CPU, running intensive games will still make the stock heatsink work really hard.
 
Solution
the case is really exposed to dust.
something like this would be better, its white and purple: PCPartPicker part list / Price breakdown by merchant

Case: BitFenix Neos White/Purple ATX Mid Tower Case ($54.99 @ SuperBiiz)
Total: $54.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-12-11 19:11 EST-0500

and you buy a case with a window , because you want to look inside .
any more preferences for the inside or does she prefer more performance per dollar.

also if she wants that case its fine..

the build is not terrible but you can easily do better for the budget.