The static pressure from a 200 is more than enough to cover the HDDs. But if you NEED
to feel the airflow at the other side of the drives just get a BitFenix 230. 150cfm, give or take 10% and will blow away most 120s'. Stock 200 keeps my RAID setup a reasonable 35c or better. Of course I only have 2 drives in my system at the moment.
Oh and btw? It is
fair to compare a 200 to a 120. On decibels alone it's a fair comparison. To beat the 200 you have to add MOAR 120s'. Moar 120s' will beat a 200. But they'll also drive you nuts even when you're undervolting them. Unless you're deaf anyway. Hell, go ahead and add four 120s' and get a head start on the deafness if that's your thing. You won't have to listen to tha wife naggin you about forgetting a "honey do" or two or more. Just turn off your hearing aids and tell her the batteries are dead.
200s' are not the greatest fans evar but they push more air and when you are in an environment where quietness is a plus(cramped living quarters, Apartment complex etc) your neighbors will than you, your ears will than you because you don't have to don headphones to play games or watch online broadcasts and your wallet will thank you. At least until you find something else to spend your savings on.
~Ceadder Edited by Ceadderman - 2/1/12 at 5:30pm