Critique my gaming PC build

Im looking to build my first gaming PC for around $1000. I need helping picking out the right components or just an overall critique of what I have selected so far. If there is anywhere you think I could save money for similar performance, let me know. Any help is much appreciated.

Again, I really have no clue what I am doing...

CPU: Intel Core i7-2600K Sandy Bridge 3.4GHz

Motherboard: ASUS Maximus IV Gene-Z

GPU: GeForce GTX 560 Ti (Fermi) 1GB

Memory: G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3

Hard Drive: Seagate Barracuda 500GB

Case: COOLER MASTER Elite 430

Optical Drive: SAMSUNG 22X DVD Burner

CPU Fan: ZALMAN LED 92mm

Power Supply: Antec BP550 Plus 550W Continuous Power ATX12V