Seeing as the PCIe lane split on the Gigabyte Z77-D3H is x16, x4, thus it won't be SLI certified, Rugger makes a good point about the wattage you are considering.
BTW the quietest out of the three units you listed is the Corsair; fan speed on maximum load has been measured at ~1300RPM, whereas the others two are going to be over 2000RPM.
But you can get lower wattage units for cheaper which are quieter.
Here are some examples:
Lepa G500-MA 500W 80Plus Gold Modular $119 (free shipping)http://www.amazon.com/Enermax-G500-MA-G500-ma-Atx12v-Modular/dp/B005988YBA
Based on the Enermax Modu87+ 500W, which is a very good unit. The maximum fan speed is 900RPM.
Seasonic SS-560KM 80Plus Gold Modular $124 ($10 shipping)http://www.newegg.com/Product/Product.aspx?Item=N82E16817151098
Again very high quality. Semi-fanless, maximum fan speed is ~1000RPM.
Rosewill Capstone 450M 450W 80Plus Gold Modular $80http://www.newegg.com/Product/Product.aspx?Item=N82E16817182261
The fan used has a maximum speed of 1200RPM, but it will be lower than that even on maximum load.
Or the 650W version
if you're uncomfortable with 450W, which there is no reason to be.