Help with my first gaming PC

Approximate Purchase Date: Hopefully by the end of this month.

Budget Range: 500 - 700

System Usage from Most to Least Important: Gaming (hopefully it would be able to play BF3, MW3, GW2, SC2, Metro 2033, ect.ect. all on almost highest settings) surfing the internet, watching movies, Homework.

Parts Not Required:

Preferred Website(s) for Parts: http://www.microcenter.com/

Country: USA

Parts Preferences: Intel

Overclocking: Probably not.

SLI or Crossfire: Maybe later in life?

Monitor Resolution: 1920x1080

Additional Comments: These are the parts that I was thinking:
I5 2500k http://www.microcenter.com/single_product_results.phtml...
8GB RAM http://www.microcenter.com/single_product_results.phtml...
1TB HDD http://www.microcenter.com/single_product_results.phtml...
DVD http://www.microcenter.com/single_product_results.phtml...
Cooler http://www.microcenter.com/single_product_results.phtml...
Case http://www.microcenter.com/single_product_results.phtml...
Power http://www.microcenter.com/single_product_results.phtml...
Motherboard http://www.microcenter.com/single_product_results.phtml...

Graphics are between:
GTX 560ti http://www.microcenter.com/single_product_results.phtml...
Radeon 7850 http://www.microcenter.com/single_product_results.phtml...

My questions are: Which graphics card would be recommended? Will everything work together? Will it all fit in the computer case? And any other comments you can think of.

Thank you for taking your time to help me out