Why not a Cooler Master V850? Just to allow room for if you want to add anything more power hungry in the future. Also, you have to be sure that the PSU you select can handle sudden changes of power draw from the 24-pin P1 power connector to the MOBO because the power delivery system on the M5A99FX will suddenly change how much power it draws very quickly when load changes. I'm not saying that's a bad thing, but some power supplies will react to that by revving their fans excessively and just plain being annoying.
That reason is why I love the Cooler Master V series of PSUs.
Nothing wrong with Corsair though, as long as you stay away from their CX series of PSUs.