yea, i got the zalman 6000cu. my system runs normally around 130F-135F. i took the cpu fan out altogether as an experiment. it sits really close to the psu exhaust fan. anyway, the temp got up to about 145F which i decided was a little too high. i'm experimenting with trying to make a dead silent PC, so i expect the temp to go up with all the insulation / ductwork / etc that i install.