[LordHood2]

When picking fans, what kind of things should one look at to determine if the fan is a good, bad or great fan? And how should specs like "1200rpm 35cFm+/-5" be interpreted as? Basically I'm looking to compare the fans that come with the case I will be using in my upcoming build (Rosewill Challenger U3) and the fan included with the Corsiar H60 against other available fans. I just dont want a situation like the one I'm in now where I buy a 120mm fan, but it turns out it doesn't really seem to do anything besides turn. (Referring to the Rocketfish 120mm fan I bought for my current PoS pc. Can't feel any air moving more then 3in away from the fan).

Thanks for the help.