Please critique my gaming build

[EV_Creeper]

Hello everyone. I think I finally made up my mind about the components of my future gaming PC

I am trying to have everything bought in amazon, as it has a good service and is one of the few online stores that ship to Mexico.
The HDD is from an all in one PC that I bought and that I can't use anymore because my nephews broke the screen, but I managed to keep the HDD
And I know many of you would say buying a dual channel RAM is better than single channel. And I agree with you, but right now I don't really need 16 GB, and I feel like getting just 8 GB is going to make me end up short of RAM in a future.
As for the motherboard, there isn't a high variety of mobos in amazon, so I think this one from a local store may do the trick, but I'm not sure.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4590 3.3GHz Quad-Core Processor ($198.99 @ Amazon)
Motherboard: Gigabyte GA-B85M-DS3H Micro ATX LGA1150 Motherboard ($82.81)
Memory: Corsair Vengeance 8GB (1 x 8GB) DDR3-1600 Memory ($74.98 @ OutletPC)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive (Purchased For $0.00)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card ($348.95 @ Amazon)
Case: Thermaltake Versa H21 Window ATX Mid Tower Case ($43.55 @ Amazon)
Power Supply: Antec 450W ATX Power Supply ($33.99 @ Amazon)
Total: $783.27
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-11 04:40 EST-0500

 

[mas7873]

"Some Intel B85 chipset motherboards may need a BIOS update prior to using Haswell Refresh CPUs."
Look into getting an H97 motherboard instead.

For ram you'll want duel channel ram (2x 4gb sticks) rather than a single 8gb stick. So change that to (2x4gb) G.Skill makes nice well priced ram IMO.

PSU is cutting it close, I'd say go for a XFX 550W Bronze+ rated PSU.