~$1400 first time gaming PC

Approximate Purchase Date: this week
Budget Range: 1400 max, less if possible
System Usage from Most to Least Important: Gaming, internet, movies.
Parts Not Required: Keyboard, mouse, monitor, speakers, OS
Preferred Website(s) for Parts: newegg.com
Country: United States
Parts Preferences: None
Overclocking: Maybe
SLI or Crossfire: No
Monitor Resolution: 1920x1080
Additional Comments: I'm very new to this. I'll mostly be playing Guild Wars 2, Dota 2, and Mount and Blade: Warband with the Battle Size Changer with as many units as possible.

I haven't bought anything yet, but I was thinking something like:

Core i7-3770k

GIGABYTE GA-Z77X-UD5H LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
bundled with:
1x CORSAIR Vengeance 16GB (2 x 8GB) 240-Pin DDR3
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

ASUS HD7870-DC2-2GD5 Radeon HD 7870 GHz Edition 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2 Continuous Direct Contact 120mm Sleeve CPU Cooler
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

PC Power and Cooling Silencer Mk II 950W High Performance 80PLUS Silver SLI CrossFire ready Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Western Digital Caviar Black WD1002FAEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Antec Eleven Hundred Black Super Mid Tower Computer Case
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

ASUS 24X DVD Burner - Bulk 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM Black SATA Model DRW-24B1ST/BLK/B/AS - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E168...