ya, crashman seems to be right yet again, but in the off chance you're not going to listen to him, make sure you get a power supply that can handle the load of the system without getting too hot itself. that things in the case too and it gets plenty hot sittin 2 inches away from the CPU. get a case fan or 2 and i'm gonna pick up a PCI slot "system cooler"... just another fan that fits in a PCI slot and sucks air out.
there isn't to much you can do to keep the CPU itself cool, but if you keep the rest of the system cooler it will be better