Look my build is so similar to your's exept i dont plan to overclock so i got an h77 motheboard.. in my opinion man you dont need to OC unless your video rendering or like 1 out of a million in a game you may lag and need to overclock for 5 minutes.. but you can build a similar build to that with no overclock (which means alot less things to worry about) and you can run games at max smoothly, as well you could have a piece of mind that you're not overclocking stressing out you're system which in turn will last longer.
About the graphics card i would go for the EVGA GTX 670 FTW version. its intel which is obviously better and that graphics card will blow any game out now and to come for at least a year. If you want to future proof you're build so that you will have 2 GTX 670's that will last for another year. IMO go with intel and go with a motherboard that support dual video cards its the smartest move. IMO
Yes, that sounds so good, thank you for sharing this. By the way, is my motherboard support dual video cards? And about overclock, i heard that 3570k should be overclocked otherwise get the non-k version. Is this statement right?
With my specs, does overclocking to 4.4 will do any harm?
What if i overclock it just to extend its limit but will not use any video rendering but will just let it download file from internet over night? Would that sill be ok?