hey, im having similar heat issues..
my CPU is currently at 78.C and my Mobo is at 36.C
thats with an extra case fan, and the mobo side of the case off!
the CPU has a fan mounted.
im guess the CPU is so hot because im having hassle with my PC, for some reason CPU running at 60% constant.
but even before this problem arose, the CPU temp rarely goes below 50.C, unless i force cool air through case via a Pedistal Fan..
P4 3.00Ghz/HT 1Mb Prescott OC\'ed to 3.50Ghz
1024Mb DDR 400 PC3200 [2x512mb]
Western Digital 80Gb 7200rpm
Seagate Barracuda 160Gb 7200rpm
Seagate Barracuda 200Gb 7200rpm
Nvidia Geforce 6200 256Mb
LiteOn 12x DVD + R/RW