I have to say im with james here
3960x and a top of the range X79 board is about £1100 that is with the X79 X9 board there are more expensive boards out there
i7 3770k and GD65 = £390
so with that £700 i have saved i think i might just treat myself to GTX670 SLI, nice comfy chair, keyboard, mice, headset, 3 monitors, i dont know you pick and decide
3960X is for performance rigs, not gaming rigs, you rendering 24/7? then why spend £800 on a CPU alone