That depends on the system you put in there and whether you are overclocking it. Plus you may have things like Passive coolers which reduce the need for fans.
Looks interesting (though that colour combo wouldn't be my choice). Did you build it yourself? As was stated - we'd need to know what you plan to put into the case.
I'd probably have a slow fan running next to silent sat by the HD's just to help move the air, and a zallman CPU cooler also on quiet, hopfully once the heats away from the trouble spots, it'd just float out of the case...
i foung it in http://www.protocase.com/www/product/u-shape.asp just thinking if i have that many perforated holes i may not need the fans. i am not sure if i will buy this but will definitely ask for quote from them.