Is this a solid build for under 400$?

Solution
without hdd

PCPartPicker part list: http://pcpartpicker.com/list/9LY6QV
Price breakdown by merchant: http://pcpartpicker.com/list/9LY6QV/by_merchant/

CPU: Intel Core i3-4160 3.6GHz Dual-Core Processor ($113.99 @ SuperBiiz)
Motherboard: ASRock H97M PRO4 Micro ATX LGA1150 Motherboard ($45.25 @ Newegg)
Memory: Crucial Ballistix Sport 4GB (1 x 4GB) DDR3-1600 Memory ($20.88 @ OutletPC)
Video Card: Asus GeForce GTX 750 Ti 2GB Video Card ($92.98 @ Newegg)
Power Supply: EVGA 500W 80+ Certified ATX Power Supply ($36.89 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($84.88 @ OutletPC)
Total: $394.87
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-10-06 13:55 EDT-0400
PCPartPicker part list: http://pcpartpicker.com/list/Pz9qHN
Price breakdown by merchant: http://pcpartpicker.com/list/Pz9qHN/by_merchant/

CPU: Intel Pentium G3258 3.2GHz Dual-Core Processor ($64.49 @ NCIX US)
Motherboard: ASRock H97M PRO4 Micro ATX LGA1150 Motherboard ($45.25 @ Newegg)
Memory: Crucial Ballistix Sport 4GB (1 x 4GB) DDR3-1600 Memory ($20.88 @ OutletPC)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($48.49 @ OutletPC)
Video Card: Asus GeForce GTX 750 Ti 2GB Video Card ($92.98 @ Newegg)
Power Supply: EVGA 500W 80+ Certified ATX Power Supply ($36.89 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($84.88 @ OutletPC)
Total: $393.86
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-10-06 13:53 EDT-0400
 
without hdd

PCPartPicker part list: http://pcpartpicker.com/list/9LY6QV
Price breakdown by merchant: http://pcpartpicker.com/list/9LY6QV/by_merchant/

CPU: Intel Core i3-4160 3.6GHz Dual-Core Processor ($113.99 @ SuperBiiz)
Motherboard: ASRock H97M PRO4 Micro ATX LGA1150 Motherboard ($45.25 @ Newegg)
Memory: Crucial Ballistix Sport 4GB (1 x 4GB) DDR3-1600 Memory ($20.88 @ OutletPC)
Video Card: Asus GeForce GTX 750 Ti 2GB Video Card ($92.98 @ Newegg)
Power Supply: EVGA 500W 80+ Certified ATX Power Supply ($36.89 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($84.88 @ OutletPC)
Total: $394.87
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-10-06 13:55 EDT-0400
 
Solution

Dark Lord of Tech

Retired Moderator
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i3-6100 3.7GHz Dual-Core Processor ($110.99 @ SuperBiiz)
Motherboard: Asus H110M-A/M.2 Micro ATX LGA1151 Motherboard ($49.98 @ Newegg)
Memory: Team Elite Plus 4GB (1 x 4GB) DDR4-2133 Memory ($20.98 @ Newegg)
Video Card: Asus GeForce GTX 750 Ti 2GB Video Card ($92.98 @ Newegg)
Power Supply: Corsair CXM 550W 80+ Bronze Certified Semi-Modular ATX Power Supply ($39.99 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($84.88 @ OutletPC)
Total: $399.80
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-10-06 14:03 EDT-0400