Building a new computer. NEED ADVICE.

Hi All,

I am currently building a computer and am pretty new to all the specific specs of all the components of each piece required, so I have lots of questions. I do occasional movie watching, starcraft 2, league of legends, and hoping to get the new black ops 2. What would be a good set up to play and do what I want at maximum settings with no lag. I would like to keep the whole set up <$1000.

This is the general setup stats I had in mind.

Is the price for intel really worth it? Is there a big difference between i5 and i7? I am leaning towards the i5 for the price of it + the mobo.
---Core i5 3570K 3.4GHz LGA 1155 Processor
---Core i7 3770K 3.5GHz LGA 1155 Processor
---Core i7 2700K 3.5GHz LGA 1155 Boxed Processor
---Core i7 3770 3.4GHz LGA 1155 Processor
---AMD FX 8-Core Black Edition FX-8120

---Agility 4 AGT4 Series AGT4-25SAT3-128 128GB SATA 6Gb/s 2.5" Internal Solid State Drive (SSD)
---Barracuda 2TB 7,200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive

Is 16GB overkill? and is there a big perfermance gap between 1333, 1600 and 1833 RAM ?
---G.SKILL Ripjaws Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600

I'm not sure about the following 2 GPUs. One has 2GB whereas another is superclocked with only 1GB, which is better and why?
---EVGA GeForce GTX 650 2048MB GDDR5 DVI mHDMI Graphics Card
---EVGA GeForce GTX 650 SUPERCLOCKED 1024MB GDDR5 DVI mHDMI Graphics Card 01G-P4-2652-KR


That leaves the chassis, mother board, and the power supply, please suggest which kinds would be adequate or a nice deal or has nice features. I have a single 21 inch monitor running ~1600 x 1080 resolution. I am open to all suggestions, these are just what I found on sale from newegg, microcenter and amazon.

I want to pay about this much for each part.
CPU ~200
GPU ~150
RAM <100
HDD <100
SSD ~120
PSU <80
Chassis < 100
MOBO < 200