I put this together based on the build in the OP.
http://pcpartpicker.com/p/nk8VTW
Is there anything there that should go? Or could be cheaper? Or anything which looks completely wrong? That build was updated as of November, is there anything that should be updated?
I optimized your build for current pricing. Saved around $50 and added a CPU cooler as well. When do you plan to build the PC?
PCPartPicker part list / Price breakdown by merchant
CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($241.98 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($28.89 @ OutletPC)
Motherboard: Gigabyte GA-Z97X-SLI ATX LGA1150 Motherboard ($100.98 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory ($54.99 @ Newegg)
Storage: Crucial BX100 250GB 2.5" Solid State Drive ($80.98 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($52.49 @ OutletPC)
Video Card: Gigabyte GeForce GTX 970 4GB WINDFORCE 3X Video Card ($295.00 @ Newegg)
Case: NZXT S340 (Black) ATX Mid Tower Case ($68.99 @ SuperBiiz)
Power Supply: EVGA SuperNOVA GS 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($64.99 @ NCIX US)
Total: $974.29
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-04-27 01:33 EDT-0400
1. I recommend a CPU cooler for your overclockable 4690K. The 212 Evo is well regarded as the budget king of CPU coolers and it should allow for an overclock up to and around 4.5GHz.
2. I found faster 2133MHz RAM for a lower price.
3. The newer BX100 is cheaper than the MX100 and will offer comparable performance. You can read about the differences here.
4. Back then the MSI Gaming 4G was recommended a lot, it's still a good card but now there are other cards that are more worthwhile when it comes to price and performance. The Gigabyte GTX 970 Windforce is just $295 after rebates, which is a very good price as GTX 970 cards rarely drop below $300. If you want other alternatives, the EVGA GTX 970 FTW ($315 after rebates and discounts) comes with a high factory overclock and I think it has a zero fan speed mode when at low temperatures.
Yet another alternative would be the AMD R9 290, they offer somewhat lower but similar performance compared to the GTX 970 but at a much lower price of as low as $240. Differences include a fully usable 4GB VRAM but increased heat, wattage consumption, and the lack of a zero fan speed mode at low temperatures. Examples include the XFX R9 290 ($240 after rebates and discounts) and the Powercolor R9 290 PCS+ ($254 after rebates).
5. That Corsair power supply is somewhat expensive for the quality it offers. Instead I recommend something like the EVGA Supernova GS 650 watt model for just a few dollars more after rebates. It's gold rated and fully modular, and reviews are quite good.
If you want something with higher wattage, there's the EVGA Supernova B2 750 watt model ($62 after rebates). It comes well-reviewed from Jonny Guru and 750 watts is enough for SLI twin GTX 970s if you want that option open in the future (personally recommend against that due to the GTX 970 3.5GB effective VRAM).
The only thing else left to add is that you could also save money on the case, if you're not attached to the S340. For example, currently the Corsair 230T is available for $55 after rebate, which seems to be a fine case. That specific model has no case window, though.
Edit: Is a color coordinated interior something you want? I just noticed that your original parts list sort of had a red and black theme going on.