WHAT YOU SAID = BAD
j/k

Actuall,y I went through similar shininigans, and ended up replacing my power supply for a 350watt sucker and some new pc133 memory. BUt before you do anything else, strip your system down to the bare minimum ie video card, bare mobo out of the box, power supply, keyboard. Sometimes mobos can be notorious for shorting out on the case for one reason or another. But again, give the power supply a shot.
I'll keep up with your progress, this damn board pisses me off.