1st time builder - Gaming PC

Hello guys, I've been choosing parts for my new build for a few days, and I would like to know what you guys think about it before I hit "Purchase"  

Approximate Purchase Date: next week

Budget Range: Max $1500 After Rebates

System Usage from Most to Least Important: Gaming, Watching Movies, Browsing Internet

Parts Not Required: keyboard, mouse, monitor, speakers, optical drive, OS

Preferred Website(s) for Parts: newegg.com

Country of Origin: Canada

Parts Preferences: by brand or type None

Overclocking: Probably

SLI or Crossfire: No

Monitor Resolution: 1920x1080

So far, I've picked these :

CPU : Intel Core i5-2500K Sandy Bridge 3.3GHz

MOBO : ASUS P8Z68-M Pro LGA 1155 Intel Z68

Graphic card : EVGA SuperClocked 015-P3-1582-AR GeForce GTX 580 (Fermi) 1536MB

RAM : 2x CORSAIR XMS3 4GB 240-Pin DDR3 SDRAM DDR3 1600

Hard drive : Western Digital Caviar Black 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive

SSD : Crucial M4 2.5" 128GB SATA III

Power Supply : Antec EarthWatts Series EA-750 Green 750W ATX12V

Case : Rosewill BLACKHAWK Gaming ATX Mid Tower Computer Case

Is there any incompatibility ?
Is this system balanced ?
Could I get a better deal replacing some parts ?

Current price : $1,395.91 Can

Thanks,