1) The GTX 680 is a hose job. The GTX 670 runs head to head with it for cheaper and requires less juice to do so.
2) That's a decent case but it only comes with two 120mm fans and no front 3.0 USB ports
3) That monitor is big but it has a slow response time. Unless you plan on using it for a home theater look at this one down below.
4) Better psu imo down below
5) Intel 3570K mops the floor with that AMD
6) Look at an SSD to load up Windows and games
7) 16GB of RAM is way over kill
8) CM EVO has a better mounting system and the fans are adjustable. Better all around cpu cooler than the older 212 version you have up there
http://www.amazon.com/Corsair-Carbide-Black-Computer-CC-9011011-WW/dp/B0055Q7BR4/ref=sr_1_2?s=pc&ie=UTF8&qid=1353613946&sr=1-2 $74.99 & this item ships for FREE with Super Saver Shipping
Corsair Carbide Series Black 400R Mid Tower Computer Case (CC-9011011-WW)
http://www.amazon.com/Corsair-Builder-Bronze-Certified-Supply/dp/B008RJZQSW/ref=sr_1_1?s=electronics&ie=UTF8&qid=1353613616&sr=1-1&keywords=corsair+cx+750 $86.00 & this item ships for FREE with Super Saver Shipping
Corsair CX750 Builder Series ATX 80 PLUS Bronze Certified Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157330 $99.99 FREE SHIPPING
ASRock Z77 Extreme3 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.amazon.com/Intel-Core-i5-3570K-Quad-Core-Processor/dp/B007SZ0E1K/ref=pd_ts_zgc_e_229189_1?ie=UTF8&s=electronics&pf_rd_p=1381382962&pf_rd_s=right-10&pf_rd_t=101&pf_rd_i=193870011&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=104TB45BTBY1H8Q9N34C $219.99 & this item ships for FREE with Super Saver Shipping
Intel Core i5-3570K Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I53570K
http://www.amazon.com/Cooler-Master-Hyper-212-RR-212E-20PK-R2/dp/B005O65JXI/ref=pd_bxgy_e_text_z $28.88 & this item ships for FREE with Super Saver Shipping
Cooler Master Hyper 212 EVO - CPU Cooler with 120mm PWM Fan (RR-212E-20PK-R2)
http://www.newegg.com/Product/Product.aspx?Item=N82E16820220685 $34.99 - $19.99 after $15.00 rebate card FREE SHIPPING
Patriot Viper 3 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model PV38G160C9K
http://www.amazon.com/Lite-On-Super-AllWrite-Layer-Drive/dp/B002YIG9AQ/ref=pd_cp_pc_2 $22.94 & eligible for FREE Super Saver Shipping on orders over $25
Lite-On Super AllWrite 24X SATA DVD+/-RW Dual Layer Drive - Bulk - IHAS124-04 Version C (Black)
http://www.amazon.com/GIGABYTE-WINDFORCE-PCI-Express-Graphics-GV-N670WF2-2GD/dp/B008LZKLF0/ref=sr_1_2?s=electronics&ie=UTF8&qid=1353619369&sr=1-2&keywords=gigabyte+gtx+670 $379.99 & this item ships for FREE with Super Saver Shipping | Price after rebate: $359.99
GIGABYTE GeForce GTX 670 WINDFORCE 2X OC Edition 2048MB GDDR5 PCI-Express 3.0 2x DVI/HDMI/DP SLI Ready Graphics Card GV-N670WF2-2GD
http://www.amazon.com/Western-Digital-Caviar-Cache-Desktop/dp/B00461G3MS/ref=sr_1_4?m=ATVPDKIKX0DER&s=pc&ie=UTF8&qid=1353614415&sr=1-4 $59.99 & this item ships for FREE with Super Saver Shipping
Western Digital Caviar Blue 500 GB SATA III 7200 RPM 16 MB Cache Bulk/OEM Desktop Hard Drive - WD5000AAKX
http://www.amazon.com/SanDisk-Extreme-2-5-Inch-Solid-SDSSDX-240G-G25/dp/B006EKJ8UI/ref=sr_1_1?s=electronics&ie=UTF8&qid=1353617312&sr=1-1&keywords=sandisk+240gb+ssd $176.99 & this item ships for FREE with Super Saver Shipping
SanDisk Extreme SSD 240 GB SATA 6.0 Gb-s 2.5-Inch Solid State Drive SDSSDX-240G-G25
http://www.amazon.com/Windows-System-Builder-DVD-64-Bit/dp/B0094NY3R0/ref=sr_1_2?s=software&ie=UTF8&qid=1353619472&sr=1-2&keywords=windows+8 $79.99 & this item ships for FREE with Super Saver Shipping
Windows 8 System Builder DVD 64-Bit
http://www.amazon.com/Asus-VS238H-P-23-Inch-Full-HD-Monitor/dp/B005BZNEVQ/ref=pd_cp_pc_3 $139.99 & this item ships for FREE with Super Saver Shipping | Price after rebate: $119.99
Asus VS238H-P 23-Inch Full-HD LED Monitor | LED Backlit with 50,000,000:1 ASUS Smart Contrast Ratio; Full 1080P with HDMI
Total: $1,403.74 *not including shipping & rebates
*** Add a start menu to Windows 8 with either of these....
http://windows8startbutton.com/
http://www.stardock.com/products/start8/