New Gaming PC, Help Would be Greatly Appreciated

Approximate Purchase Date: this week

Budget Range: $1200 though I can go a bit higher if need be

System Usage from Most to Least Important: Photoshop, gaming, word processing, internet

Are you buying a monitor: No

Do you need to buy OS: Yes

Preferred Website(s) for Parts: newegg.com


Parts Preferences: Nividia and Intel

Overclocking: Probably Not

SLI or Crossfire: Maybe in a year or two

Your Monitor Resolution: 1920x1200


So here's what I've put together:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($229.99 @ Newegg)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($142.86 @ Newegg)
Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory ($99.99 @ Newegg)
Storage: Samsung Spinpoint F3 1TB 3.5" 7200RPM Internal Hard Drive ($88.98 @ Newegg)
Video Card: Gigabyte GeForce GTX 660 Ti 2GB Video Card ($307.55 @ Newegg)
Case: Cooler Master HAF 922 ATX Mid Tower Case ($94.98 @ Newegg)
Power Supply: PC Power & Cooling 750W ATX12V / EPS12V Power Supply ($89.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($26.97 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (64-bit) ($99.99 @ Newegg)
Total: $1181.30
(Prices include shipping and discounts when available.)
(Generated by PCPartPicker 2012-08-25 19:55 EDT-0400)


So how's that look? Any tips, or pointers? Any modifications I should make? I'm kinda worried about the motherboard, but I'm having a hard time choosing one, so is this one ok? Also, I'm pretty sure it's all compatible, but some reassurance would be great.

Thanks in advance, I really appreciate the help.