Blue Screen Blues

Help, I am losing my mind.....no not really but it is annoying. I have been getting different bluescreens everyday and they seem to point to a driver problem but I can't narrow down what the exact cause it. I've gotten a few Driver IRQL not less or equal error, a bad pool caller once and several others. They are all in the dumps I am including. I have stripped my machine to the bare minimum, tried several different sound blaster drivers and tested my memory for 8 hours with memtest 86+ but still get these darn errors. I have also had a few spontaneous shutdowns. Please have a look through my dump files and let me know what you think.:cry