Here is what I would suggest.
1. You don't need an i7 for gaming because the hyperthreading is not utilized.
2. The motherboard is a bit overkill.
3. You would do much better in a CrossFire setup over the 660 Ti
4. Get an IPS monitor, they are much better
5. No need for HDMI cable as the monitor will come with a DVI cable (if you choose my recommendation)
6. No real need for 1866MHz RAM. The performance increase will not be noticed over 1600
7. Spending way too much on peripherals
8. Go with a cheap mouse pad, unnecessary spending
PCPartPicker part list /
Price breakdown by merchant /
Benchmarks
CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($219.99 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($33.24 @ Amazon)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($124.99 @ Microcenter)
Memory: Patriot Viper 3 8GB (2 x 4GB) DDR3-1600 Memory ($38.50 @ NCIX US)
Storage: OCZ Vertex 4 256GB 2.5" Solid State Disk ($212.95 @ Mac Connection)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($69.99 @ Amazon)
Video Card: Gigabyte Radeon HD 7950 3GB Video Card (CrossFire) ($297.98 @ SuperBiiz)
Video Card: Gigabyte Radeon HD 7950 3GB Video Card (CrossFire) ($297.98 @ SuperBiiz)
Case: NZXT Phantom (Black/Green) ATX Full Tower Case ($95.99 @ Amazon)
Power Supply: SeaSonic M12II 750W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($115.17 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($15.98 @ Outlet PC)
Monitor: LG IPS231B-BN 23.0" Monitor ($179.99 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (32-bit) ($89.98 @ Outlet PC)
Keyboard: AZIO Levetron Mech4 Wired Gaming Keyboard ($89.00 @ Mechanical Keyboards)
Mouse: Razer RZ01-00280500-R3M1 Wired Laser Mouse ($66.00 @ Amazon)
Other: Creative Fatal1ty Gaming Headset ($49.99)
Total: $1997.72
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-01-27 15:52 EST-0500)