Overcloacking Intel Core i5-4690K 3.5GHz and Bottlenecking

I am planning a new build, I have bought some of the parts already and plan to purchase the remainder around labor day.

http://pcpartpicker.com/p/VJgNxr

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

Type|Item|Price
:----|:----|:----
**CPU** | [Intel Core i5-4690K 3.5GHz Quad-Core Processor](http://pcpartpicker.com/part/intel-cpu-bx80646i54690k) | $199.99 @ Micro Center
**CPU Cooler** | [Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler](http://pcpartpicker.com/part/cooler-master-cpu-cooler-rr212e20pkr2) | $29.98 @ OutletPC
**Thermal Compound** | [Arctic Silver 5 High-Density Polysynthetic Silver 3.5g Thermal Paste](http://pcpartpicker.com/part/arctic-silver-thermal-paste-as535g) | Purchased For $0.00
**Motherboard** | [ASRock Z97 EXTREME4 ATX LGA1150 Motherboard](http://pcpartpicker.com/part/asrock-motherboard-z97extreme4) | $115.99 @ Newegg
**Memory** | [G.Skill Sniper Series 8GB (2 x 4GB) DDR3-1866 Memory](http://pcpartpicker.com/part/gskill-memory-f314900cl9d8gbsr) | $89.98 @ OutletPC
**Storage** | [Samsung 840 Pro Series 128GB 2.5" Solid State Drive](http://pcpartpicker.com/part/samsung-internal-hard-drive-mz7pd128bw) | Purchased For $0.00
**Storage** | [Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive](http://pcpartpicker.com/part/western-digital-internal-hard-drive-wd5000aakx) | Purchased For $0.00
**Storage** | [Seagate Barracuda 500GB 3.5" 7200RPM Internal Hard Drive](http://pcpartpicker.com/part/seagate-internal-hard-drive-st500dm002) | Purchased For $0.00
**Video Card** | [EVGA GeForce GTX 660 2GB Video Card](http://pcpartpicker.com/part/evga-video-card-02gp42662kr) | $159.99 @ NCIX US
**Case** | [Fractal Design Define R4 (Black Pearl) ATX Mid Tower Case](http://pcpartpicker.com/part/fractal-design-case-fdcadefr4bl) | Purchased For $0.00
**Power Supply** | [Corsair CX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply](http://pcpartpicker.com/part/corsair-power-supply-cx750m) | $71.00 @ Newegg
**Optical Drive** | [Asus DRW-24B3ST/BLK/G/AS DVD/CD Writer](http://pcpartpicker.com/part/asus-optical-drive-drw24b3stblkgas) | Purchased For $0.00
**Operating System** | [Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit)](http://pcpartpicker.com/part/microsoft-os-gfc02050) | Purchased For $0.00
**Case Fan** | [Noctua NF-A14 PWM 82.5 CFM 140mm Fan](http://pcpartpicker.com/part/noctua-case-fan-nfa14pwm) | $24.28 @ Amazon
**Case Fan** | [Noctua NF-A14 PWM 82.5 CFM 140mm Fan](http://pcpartpicker.com/part/noctua-case-fan-nfa14pwm) | $24.28 @ Amazon
**Keyboard** | [Microsoft SIDEWINDER X4 Wired Gaming Keyboard](http://pcpartpicker.com/part/microsoft-keyboard-jqd00001) | Purchased For $0.00
**Mouse** | [Logitech MX518 Wired Optical Mouse](http://pcpartpicker.com/part/logitech-mouse-mx518) | Purchased For $0.00
| | **Total**
| Prices include shipping, taxes, and discounts when available | $715.49
| Generated by PCPartPicker 2014-07-22 09:13 EDT-0400 |

I plan on using this build for strictly gaming and just regular web surfing/emailing/etc.

Is there any suggestions you guys have on my build, anything you would think I should change?
I have a budget of under 800 dollars for the remainder of the items I need to purchase so please keep that in mind. Please also note anything that is Purchased I have already so I dont need suggestions with those components. If anything I would prefer you build around the CPU rather than replace it.

The second concern I have is bottlenecking of the CPU, I plan on Overclocking the i5-4590k to 4.0 Ghz+ depending on how that goes, will my GPU bottleneck my CPU since it is fairly old? I plan on SLI'ing them in the future hence the 750w PSU.

Thank you in advance for your time.