Pros: Cheap, reliable, MiniITX. Perfect for MC and bluray playback. Must have for a slim case that isnt an eyesore. If you're gaming with a HTPC then you're dumb for trying.

Cons: can get slightly bogged down, but its usually a Win7/MC issue. My fault for not going with Linux

Pros: These fans move a ton of air, hence the RPM and CFM ratings

Cons: at high RPM these will make your PC sound like a small jet engine. Be warned. 60dB is much louder than you think and a case will only amplify it