Good custom build?

The GPU is a little weak. The HDD is overpriced. The case looks cool but doesn't have USB 3.0 support for the front ports. 16GB RAM is an overkill for gaming. The motherboard is overpriced and overkill. The 212 EVO is a bit better cooler. Here is what I would suggest. (Threw in an SSD as you will like the performance increase in Read/Write speeds.)

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($229.99 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($24.99 @ Newegg)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($127.99 @ Amazon)
Memory: Crucial Ballistix sport 8GB (2 x 4GB) DDR3-1600 Memory ($34.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($64.99 @ NCIX US)
Storage: Samsung 830 Series 128GB 2.5" Solid State Disk ($112.98 @ Newegg)
Video Card: Gigabyte GeForce GTX 670 2GB Video Card ($359.99 @ Newegg)
Case: Corsair 300R ATX Mid Tower Case ($67.41 @ Mac Connection)
Power Supply: Corsair Builder 500W 80 PLUS Certified ATX12V Power Supply ($29.99 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($18.98 @ Outlet PC)
Total: $1059.30
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-01-10 00:51 EST-0500)

If you plan to SLI your video card later, you should get a 750W PSU now but you will have a better experience with a single card.

Yeah I plan to upgrade my GPU in the future. As my price range is 700$. I got almost all these items on sale so it was 700$. I'll get a SSD and the Hyper 212 Evo.

Thanks for the help man (: