Looking for advice on this build

Solution
Everything looks great :) Would just change one thing - the power supply. The 850w G2 from EVGA is a superb power supply, and will be perfect for upgrading to SLI in the future. The 650w just wouldn't cut it in the long run.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($239.99 @ Newegg)
CPU Cooler: Noctua NH-D14 65.0 CFM CPU Cooler ($64.99 @ NCIX US)
Motherboard: Asus Z97-A ATX LGA1150 Motherboard ($143.99 @ Amazon)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory ($78.99 @ Newegg)
Storage: Samsung 840 EVO 120GB 2.5" Solid State Drive ($79.99 @ Amazon)...

BleedingEdgeTek

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Everything looks great :) Would just change one thing - the power supply. The 850w G2 from EVGA is a superb power supply, and will be perfect for upgrading to SLI in the future. The 650w just wouldn't cut it in the long run.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($239.99 @ Newegg)
CPU Cooler: Noctua NH-D14 65.0 CFM CPU Cooler ($64.99 @ NCIX US)
Motherboard: Asus Z97-A ATX LGA1150 Motherboard ($143.99 @ Amazon)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory ($78.99 @ Newegg)
Storage: Samsung 840 EVO 120GB 2.5" Solid State Drive ($79.99 @ Amazon)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($88.97 @ OutletPC)
Video Card: Gigabyte GeForce GTX 770 2GB WINDFORCE Video Card ($329.99 @ NCIX US)
Case: Corsair 200R ATX Mid Tower Case ($49.99 @ Newegg)
Power Supply: EVGA 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($109.99 @ NCIX US)
Total: $1186.89
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-06-18 14:25 EDT-0400
 
Solution
Your cpu upgrade options are as good as it gets. Either broadwell or 4790K.
But... I really doubt that you will ever need such an upgrade.

More likely, an upgrade will be in the graphics card area.
To get significantly more graphics, either through a single stronger card or sli GTX770, you will need a better/stronger psu. 850w for sli, perhaps 750 for a titan Z.
Corsair CS is only middling quality. I suggest a Seasonic or XFX unit instead. 750w for a single card, 850w for sli.

I would go with a 240gb ssd up front. 120gb can fill up quickly. SSD prices are reasonable now.
Perhaps even defer on the hard drive if you don't need the storage space immediately.

8gb is all you need for gaming. You are good there.
But, if you ever anticipate 16gb, I suggest you buy a 16gb kit up front.
While adding a second kit will probably work, no ram vendor will support different kits.