PCPartPicker part list:
http://pcpartpicker.com/list/CRJBvV
Price breakdown by merchant: http://pcpartpicker.com/list/CRJBvV/by_merchant/
CPU: Intel Core i5-6400 2.7GHz Quad-Core Processor ($174.99 @ SuperBiiz)
Motherboard: MSI H110M Pro-VD Micro ATX LGA1151 Motherboard ($53.44 @ Amazon)
Memory: Crucial 8GB (2 x 4GB) DDR4-2133 Memory ($39.88 @ OutletPC)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($42.49 @ SuperBiiz)
Total: $310.80
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-10-12 08:06 EDT-0400PCPartPicker part list:
http://pcpartpicker.com/list/dfr2Hx
Price breakdown by merchant: http://pcpartpicker.com/list/dfr2Hx/by_merchant/
CPU: Intel Core i5-6400 2.7GHz Quad-Core Processor ($174.99 @ SuperBiiz)
Motherboard: MSI H110M Pro-VD Micro ATX LGA1151 Motherboard ($53.44 @ Amazon)
Memory: Crucial 8GB (2 x 4GB) DDR4-2133 Memory ($39.88 @ OutletPC)
Total: $268.31
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-10-12 07:51 EDT-0400
This leaves you around $40-50 Dollars to purchase a case of your choice, you could also change the RAM, but it won't really make too much of a difference. The motherboard however only has 2 RAM slots, so an upgrade to 2x8GB later on will be needed.
Or, if you save up an extra $60-70, you can go straight to 2x8GB, as this will be essential for the future as games are needing more RAM. Something basic and cheap like this:
https://pcpartpicker.com/product/c8Trxr/patriot-memory-px416g240c5k
Will do.
If this is out of the question, then the build below will help
😛 As the i3 6100 is a good, budget choice.