About to build this, Any suggestion?

Got you better motherboard ( with nice deal on it ), better PSU ( for future SLI ), superb SSD. Dropped VGA to 2gb version only, because 4gb doesn't have many actual uses with a GTX770:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($239.99 @ Newegg)
CPU Cooler: Phanteks PH-TC12DX_BK 68.5 CFM CPU Cooler ($49.99 @ Newegg)
Motherboard: MSI Z87-G45 Gaming ATX LGA1150 Motherboard ($149.99 @ Newegg)
Memory: Patriot Viper 3 8GB (2 x 4GB) DDR3-1600 Memory ($64.99 @ Amazon)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Disk ($129.98 @ Outlet PC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($65.98 @ Outlet PC)
Video Card: Gigabyte GeForce GTX 770 2GB Video Card ($404.98 @ SuperBiiz)
Case: Fractal Design Arc Midi R2 (Black) ATX Mid Tower Case ($109.99 @ Microcenter)
Power Supply: Corsair Enthusiast 750W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($83.50 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($17.98 @ Outlet PC)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($89.98 @ Outlet PC)
Monitor: Asus VS238H-P 23.0" Monitor ($137.99 @ NCIX US)
Keyboard: Razer Blackwidow Ultimate 2013 Wired Gaming Keyboard ($114.99 @ Newegg)
Total: $1590.33
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-06-21 01:54 EDT-0400)