Building gaming rig, need suggestions!

Hi, I believe this is my first post. I'm planning to start a build soon but with so much out there I'm having a little trouble picking the right parts. The games I'm most interested in are Battlefield, Arma, and H1Z1, but I also do a great deal of audio production. For the budget, I'd like to stay around $1200 without a monitor.

This is what I've come up with. Please give me any suggestions on any of this. I'm pretty new to building computers, last time I messed with this I was using Pentium II's. lol

[PCPartPicker part list](http://pcpartpicker.com/p/XzxXVn) / [Price breakdown by merchant](http://pcpartpicker.com/p/XzxXVn/by_merchant/)

Type|Item|Price
:----|:----|:----
**CPU** | [Intel Core i5-4670K 3.4GHz Quad-Core Processor](http://pcpartpicker.com/part/intel-cpu-bx80646i54670k) | $219.99 @ Newegg
**CPU Cooler** | [Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler](http://pcpartpicker.com/part/cooler-master-cpu-cooler-rr212e20pkr2) | $24.99 @ Newegg
**Motherboard** | [Gigabyte GA-Z97X-GAMING 7 ATX LGA1150 Motherboard](http://pcpartpicker.com/part/gigabyte-motherboard-gaz97xgaming7) | $157.50 @ Newegg
**Memory** | [G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory](http://pcpartpicker.com/part/gskill-memory-f312800cl9d8gbxl) | $72.00 @ Newegg
**Storage** | [Samsung 840 EVO 250GB 2.5" Solid State Drive](http://pcpartpicker.com/part/samsung-internal-hard-drive-mz7te250bw) | $118.99 @ Amazon
**Video Card** | [Gigabyte GeForce GTX 760 2GB WINDFORCE Video Card](http://pcpartpicker.com/part/gigabyte-video-card-gvn760oc2gdrev20) | $229.99 @ Newegg
**Case** | [Cooler Master Storm Enforcer ATX Mid Tower Case](http://pcpartpicker.com/part/cooler-master-case-sgc1000kwn1) | $87.99 @ NCIX US
**Power Supply** | [Corsair RM 650W 80+ Gold Certified Fully-Modular ATX Power Supply](http://pcpartpicker.com/part/corsair-power-supply-rm650) | $99.00 @ Amazon
**Operating System** | [Microsoft Windows 8.1 (OEM) (64-bit)](http://pcpartpicker.com/part/microsoft-os-wn700615) | $89.98 @ OutletPC
**Keyboard** | [Microsoft SIDEWINDER X4 Wired Gaming Keyboard](http://pcpartpicker.com/part/microsoft-keyboard-jqd00001) | $59.98 @ OutletPC
**Mouse** | [Razer DeathAdder 2013 Wired Optical Mouse](http://pcpartpicker.com/part/razer-mouse-rz0100840100r3u1) | $54.99 @ NCIX US
| | **Total**
| Prices include shipping, taxes, and discounts when available | $1215.40
| Generated by PCPartPicker 2014-08-31 15:30 EDT-0400 |

The main pieces I'm concerned with are the motherboard, PSU, and the case. I already own the case but if it's recommended I can look at picking something else up instead. I've been looking at the Fractal Design Define R4 as a possible upgrade (?). For the motherboard I see it supports 7.1 surround sound but is it ideal, or should I still look at a separate sound card? For the PSU I just want to make sure it's the best option for my needs. I also plan to add an additional 1TB hard drive eventually.

What kind of results would I see from this system on BF4?

Thanks for any help.