I just put a 400mhz G3 zif (aluminum) on a formac carrier card into my old Power Mac 7500. The accompanying control panel and Newer's GaugePro tell me my processor is running at temps near or above 70C, which strikes me as way too hot. So I'm looking for ways to cool this down--perhaps a new heat sink or a small fan? Does anybody know where I could buy either of these? OR have suggestions as to other ways to cool this thing down?