i tot intake fan will leave ur pc very dusty instead of exhaust fan bro. intake fan is blowing cool air n dust into ur pc while exhaust fan is suck all the heat out n some dust. tat is y most of the intake fans hav to come wif filter to filter off the dust.

for my CM690 i put my side fan as exhaust fan coz it sucks out the heat produced by my graphic card.

between xigmatek f1254 n cm, cm would b better but xigmatek has led while tat cm doesn't has any led. if u r not looking for any led fan then go for cm.

side panel usually is intake fan but in some case like urs then u try to put it as exhaust fan so tat the heat from ur gc will b suck out instead of blown into ur casing.

silverstone suscool the speed is tat fast only if i'm not mistaken. u can try to connect the 3/4 pin power through ur motherboard then u can adjust the speed of the fan. then u try to adjust to the max.

RM30 i would say go for Cooler Master 120mm 90CFM fan although it is not 90CFm but it is a good budget fan.

depending on ur budget bro. wat is ur budget ? silent fans u can get either Cooler Master 90CFM fan or Cooler Master Blade Master or Artic F12.

normal F12 is RM30, u could buy from Mr clawhammer here. yup don eva buy those budget CM fan wif led.

u could dust it off weekly or u can take it out n wash it too. but make sure the fan is completely dry b4 power it up.

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Added on September 13, 2010, 3:11 pmu could take xigmatek 140mm fan tat is wif white led but blue uv fins.

This post has been edited by cmgan72: Sep 13 2010, 03:11 PM

i think u can find it easily in lowyat plaza or digital mall. juz need to do some price survey b4 making the purchase.