This build would make the guys at r/pcmasterrace weep
This is the build I'm slowly working on. For the parts that were already purchased, I had to make a guess. I recently ordered the RAM and power supply, and I am waiting for them to arrive.
PCPartPicker part list / Price breakdown by merchant
CPU: Intel Pentium G3220 3.0GHz Dual-Core Processor (Purchased For $56.99)
Motherboard: ECS H81H3-I/HDMI (V1.0) Mini ITX LGA1150 Motherboard (Purchased For $39.00)
Memory: Kingston HyperX Fury Black 8GB (2 x 4GB) DDR3-1600 Memory ($46.99 @ Amazon)
Storage: Kingston SSDNow V300 Series 120GB 2.5" Solid State Drive ($49.99 @ Amazon)
Video Card: EVGA GeForce GT 740 2GB Superclocked Video Card ($90.99 @ Amazon)
Case: Antec VSK-3000 MicroATX Mid Tower Case (Purchased For $29.99)
Power Supply: EVGA 430W 80+ Certified ATX Power Supply ($36.99 @ Amazon)
Total: $350.94
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-11-03 14:47 EST-0500
PCPartPicker part list / Price breakdown by merchant
CPU: Intel Pentium G3220 3.0GHz Dual-Core Processor (Purchased For $56.99)
Motherboard: ECS H81H3-I/HDMI (V1.0) Mini ITX LGA1150 Motherboard (Purchased For $39.00)
Memory: Kingston HyperX Fury Black 8GB (2 x 4GB) DDR3-1600 Memory ($46.99 @ Amazon)
Storage: Kingston SSDNow V300 Series 120GB 2.5" Solid State Drive ($49.99 @ Amazon)
Video Card: EVGA GeForce GT 740 2GB Superclocked Video Card ($90.99 @ Amazon)
Case: Antec VSK-3000 MicroATX Mid Tower Case (Purchased For $29.99)
Power Supply: EVGA 430W 80+ Certified ATX Power Supply ($36.99 @ Amazon)
Total: $350.94
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-11-03 14:47 EST-0500
Comments
For graphics, I strongly recommend getting a 750ti. I got mine for ~130 CAD, so shouldn't be too much more.
For the CPU, upgrade to the G3258 for not much more, it's overclockable for cheap.
PSU and RAM look good. Board I am slightly suspicious of.
Personally i'd have looked into a case like this. Much better quality and isn't even $10 more than the one you chose and perhaps this for the motherboard.
i see that you've already purchased those two however so hopefully it goes smoothly for you.