looks like quite a few of you are in need of quality fans. not sure exactly what model this antec is but the 4pin ive used arent that great at all. for 5 bucks it may be ok and reliable enough to build for your mom, but as far as oc'ing and "windtunnels" heh, go get those panaflos or NMB's and such. sorry dont have any links or specs handy i just wanted to point you guys in the better direction.
btw, something i havent seen people mention much about is the CURRENT DRAW. aside from the brand/ballbearing/sleeve/fin design, i think a .25amp fan is a helluva lot more powerful than a .10amp fan.
but anyways, my cfm and waterblock days were unexpectedly cut short. methinks its time to take inventory and head on over to the forsale/trade =P