It was bound to happen, I have had this cheap 450W PSU that came with my case that I got 2 years ago. I chanced it and it worked well for a long time. Im just glad that the PSU didnt take anything with it as it blew. Just as I go to turn on the Computer here a little *pop*, knew exactly what happened. I guess I'll be hitting up Newegg soon. Probably grab at least a 550W PSU for future SLI if needed. The worst part is, this has to happen as L4D is ready to hit!!! argh!