New ~$2000 gaming build. Advice Appreciated

My primary use for this computer is going to be gaming. MMO's and FPS's. Im currently running a 1080p monitor but im thinking about getting something better in the future.

1x http://pcpartpicker.com/part/intel-cpu-bx80619i73820 - Intel Core i7-3820 ($300 Newegg)
1x http://pcpartpicker.com/part/asus-motherboard-sabertoothx79 - ASUS Sabertooth X79 ($314 Newegg)
1x http://pcpartpicker.com/part/samsung-internal-hard-drive-mz7td250bw - SAMSUNG 840 Series 250GB ($150 Newegg)
1x http://pcpartpicker.com/part/corsair-power-supply-cmpsu850ax - Corsair AX850 ($180 Newegg)
1x http://pcpartpicker.com/part/corsair-case-c70militarygreen - Corsais C70 Military Green ($140 Newegg)
1x http://pcpartpicker.com/part/gskill-memory-f31600c9d16gxm - G.Skill F3-1600C9D-16GXM ($80 Newegg)
2x http://pcpartpicker.com/part/evga-video-card-02gp42678kr - EVGA GTX 670 FTW ($410 Newegg)
1x http://pcpartpicker.com/part/noctua-cpu-cooler-nhd14se2011 - Noctua NH-D14 SE2011 ($90 Newegg)
1x http://www.newegg.com/Product/Product.aspx?Item=N82E16832116986 - Windows 7 ($80 Newegg)

The Price in my shopping cart right now is about $2200. Im working on finding better deals and lowering the price a little more.

What im not sure of is the processor and the motherboard. I see alot of people going for the i5-3570 I want something that'll last me atleast another 3 years before I need to even consider an upgrade again. Also I kept hearing about heat issues with the 3770k so im leaning towards the 3820 because I leave my computer on almost 24/7 and I dont want to stress over temperatures.

Also the FTW's just went up in price. im wondering if there is any other brand i can get that also exhausts the heat out the back.

Ram, Heatsink and power supply are also up in the air. Im looking for the best band for the buck. A modular PSU would be nice.

Any recommendations would be appreciated.