UPDATE for you. As you know I SOLVED the above.
I took out my old NEC35400A DVDWriter and so far I have not had any BSODS. But my PSCS3 shuts down after 15 minutes of use.
Once I have (if it works, this will tell me if it's the mobo or psu) my ASUS K8N-E Deluxe up and running I shall Reformat my ASUS M2N-Sli Deluxe and try again.
After this I'll never Ever buy another Asus mobo. My OLD ABIT KG-Lite I gave to a friend is still going strong. Unbelievable.