A Ivy bridge quad core dissipates 77 W. An Arctic Cooling Alpine Pro 11 can easily cool that CPU very quietly. I've had no issues with my Alpine 64 Pro (64 means for AMD). It cools my triple core Athlon II x3 425 which has a TDP of 95W, and built on a 45 nm technology, so it should in theory dissipate more heat than the Intel quad core.
At idle the fan runs at 500 rpm and during gaming (I play D3 too) it runs at about 6-800 rpm in a case with very little air flow. That's very quiet
If you're very demanding and wants absolute silence I think the Samurai ZZ might be a little better since the fan can run as low as 300 rpm and it has a much better thermal performance.
Have you considered the Seasonic G 360W? It's a new PSU which will soon be reviewed here at SPCR. According to Mike's initial testing the noise is only 13 dBA/1m. That's really quiet, and it's also very efficient and quite cheap.
And lastly, I'd always spend the extra 10 USD for two extra cores.