You dont need that much for gaming,
If you are gonna OC, then don't get that 3820. Get a 3770k and a z77 mobo.
Might have to change the case to a bigger one.
and you dont really need a 2400mhz Ram. It wont make much difference, get a cl9 1866 OR 2133, and stay with G.Skill.
Have you gone nuts with the PSU?
This one is enough: http://www.newegg.ca/Product/Product.aspx?Item=N82E1681...
Thers not much Difference between Seagate and WD. I would Rather opt for a 3tb Barracuda, but its up to you.
Anyway, yours is ok, although you can save a lot of money.
CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($224.99 @ Amazon Canada) dont need i7 for gaming
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($28.99 @ Canada Computers) need a cooler for the cpu
Motherboard: Asus Maximus V Formula EATX LGA1155 Motherboard ($270.13 @ DirectCanada) this is a bit overkill you could check asrock 6 and Asus P8Z77-V PRO they go for about 200$
Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory ($79.73 @ DirectCanada) no need for 16gb memory but here, 8gb is enough for gaming
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($69.99 @ Memory Express) secondary drive for files
Storage: Samsung 840 Series 120GB 2.5" Solid State Disk ($96.02 @ DirectCanada) SSD for quick loads on games and other stuff
Case: Cooler Master HAF X ATX Full Tower Case ($169.98 @ NCIX) this is an ugly case but i wanted a price in there, take a look at Coolermaster Storm Trooper
Power Supply: Corsair Professional Gold 750W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($139.99 @ Canada Computers) if dont feel comfortable with 750watt then go AX850 corsair, But 750 will be sufficient Total: $1079.82
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-02-03 09:49 EST-0500)