Is this build ok?

PCPartPicker part list: http://pcpartpicker.com/p/v0ov
Price breakdown by merchant: http://pcpartpicker.com/p/v0ov/by_merchant/
Benchmarks: http://pcpartpicker.com/p/v0ov/benchmarks/

CPU: Intel Core i7-3770K 3.5GHz Quad-Core Processor ($319.98 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ Amazon)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($134.98 @ Outlet PC)
Memory: G.Skill Ripjaws X Series 16GB (4 x 4GB) DDR3-1333 Memory ($89.99 @ Newegg)
Storage: Seagate Barracuda 1.5TB 3.5" 7200RPM Internal Hard Drive ($69.99 @ NCIX US)
Video Card: MSI GeForce GTX 560 Ti 2GB Video Card ($278.98 @ SuperBiiz)
Sound Card: Asus Xonar DG 24-bit 96 KHz Sound Card ($27.00 @ Amazon)
Case: Cooler Master HAF 912 ATX Mid Tower Case ($49.99 @ NCIX US)
Power Supply: Rosewill Capstone 450W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($59.99 @ Amazon)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($22.98 @ Newegg)
Total: $1083.86
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2012-12-30 13:51 EST-0500)

I'm planning on using it mainly for video editing for Sony Vegas, and intense gaming and since my current laptop can not use it's graphics card to help speed up the process I wonder if this will be a good graphics card compared to the GTX 570 model?