Wanting opinions on a first built gaming computer

[New_World]

This is the first time I am building my own computer from scratch. I was wanting opinions and critiques on it.
Case:Corsair Obsidian Series 650D http://www.newegg.com/Product/Prod [...] 6811139006

Graphics Card: MSI N560GTX-Ti Hawk GeForce GTX 560 Ti (Fermi) http://www.newegg.com/Product/Product.aspx?Item=N82E16814127578

Power Supply: CORSAIR Professional Series HX650 (CMPSU-650HX) 650W http://www.newegg.com/Product/Prod [...] 6817139012

Ram: CORSAIR Vengeance 8GB (2 x 4GB)240-Pin DDR3 SDRAM DDR3 1600 http://www.newegg.com/Product/Prod [...] 6820233144

Motherboard:ASUS SABERTOOTH P67 (REV 3.0) LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard http://www.newegg.com/Product/Prod [...] 6813131702

CPU: Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) http://www.newegg.com/Product/Prod [...] 6819115072

Hard Drive: Seagate Barracuda ST31000524AS 1TB 7200 RPM 32MB Cache http://www.newegg.com/Product/Prod [...] 6822148697

CD Drive: LITE-ON DVD Burner - Bulk 24X DVD R 8X DVD RW http://www.newegg.com/Product/Prod [...] 6827106289

This is what i was thinking of getting. I wanted to see if it was good or a horrible disaster. Also I wanting to know if the 650W will cover the PC. Thank you so much!

 

[AdrianPerry]

1) 500w PSU is plenty for a single 560Ti. 750w recommended for SLI
2) Samsung SpinPoint F3 is generally the 1TB HDD of choice over the Barracuda.