If it comes with fans then don't bother, only get fans if you want it to look cool (LED), other than that don't bother
You'll be fine with the case as-is. The CPU cooler fan will probably be the loudest thing in your case. If you want to reduce noise or temps, you're better off spending the money on a 3rd party CPU cooler with a larger, quieter fan.
I am fine with noise mostly, I just don't want anything to overheat. Eventually, after I buy the wifi card, I intend on buying a CPU cooler.