$1200 AMD gaming rig

Hi all. I used to be a PC gamer, but haven't used a desktop for 3 years now. Decided I wanted to build a gaming PC and get back into it.

Approximate Purchase Date: Not entirely sure. I might wait for SB, but it will probably be out of my price range.

Budget Range: $1,200

System Usage from Most to Least Important: strictly gaming

Parts Not Required: keyboard/mouse, speakers

Preferred Website(s) for Parts: newegg

Country of Origin: USA

Parts Preferences: AMD

Overclocking: Yes

SLI or Crossfire: Possibly xfire in the future

Monitor Resolution: 1920x1080

Here's what I've come up with so far:

Case/OS combo - Antec 300 and Win 7 Home x64

CPU - AMD Phenom II X4 955 Black Edition Deneb 3.2GHz
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

HSF - Cooler master hyper 212 (not sure I'll need this, but I will be OC'ing)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Memory - G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Mobo - ASRock 870 Extreme3
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

HDD - Samsung spingpoint F3 500GB or 1TB (1TB is out of stock)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

GPU - Gigabyte 6950
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

PSU - XFX 750watt Black edition (not sure this is enough for OC and 2 6950's)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

DVD drive - Asus
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Monitor - Asus 23.6" HDMI
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Total after shipping is $1,199. $30 MIR's not included.

The only thing I'm worried about is the PSU not being able to handle 2 6950's plus an OC. I might drop down to a 6870.