I have to disagree, the vantecs are over rated. The swiftechs are good but are expensive. The Alpha heatsinks rock, But the sunnon fan stinks, gotta get one with a good fan. My FOP38 cools 10C better than the Alpha 6035 w/sunnon fan, and was much cheaper. Along with a good HSF, Proper case ventilation is needed. Also, Room temps are a contributing factor.