Originally posted by Mr. Wampus
Definitely sounds like the PSU. I HOPE that is the only thing gone on you. Last year, the same thing happened to me, but I lost PSU, HD, CD, video, and sound. I was lucky not to lose the mobo or cpu. Everything was plugged into a surge protector, EXCEPT my cable. Surge came through the cable, through the cable modem (no damage) through the enet card (no damage) and wreaked havoc with the rest of my system. Good luck and let's hope it's only your psu. And buy a surge protector that protects your cable/phone/DSL connection if you don't already have one.
I thought surge protectors protecing your modem causes line noise with your modem