OK, so i checked system memory (via Windows), checked the hard drive(via Samsung checker), blew out all the dust, bought a huge outside fan that keeps the whole room cool, especially the computer, checked multiple times for viruses, and reinstalled Windows...
But I still get the blue screen occasionally when playing WoW.
STOP: 0x000000F4 (0x00000003, 0x36660340, 0x81c48400)
Thanks again for your help!
~Nick