how good are 120 mm fans in the front?

[desperado]

after thinking about it im probably going to go with this case http://www.newegg.com/Product/Product.asp?Item=N82E16811196005
but my question is how good are cases with a big fan in front and how much overclocking do you think the two fans could handle?

[LorentzForce]

As a general rule, don't overclock. All you get is a little more statistic to brag about and voided warranty.

Having two 120mm fans would help in cooling your system, but not too much more than having 80mm fans. Only advantage of 120mm fans are that since they're bigger they can push more air through without spinning as fast, thus reducing noise. I say that unless your system had no case fans to begin with, you won't see much more than few degrees at most. Cleaning the inside with cable ties and such to increase air flow will probably do much more than simply adding more fans.

[desperado]

ok the case though comes with the 80 and the 120. thats why i woundered if it would be much cooler then a normal case.