how did it exactly zap you?? were you messing with the insides? or u just pushed power and "vtech" kicked in and gave you a good sting?
(sorry had to do that one).
anyway, very very good chance it blew up, literally, meaning something went and took out everything.
but i would definitely unplug it, and if youre comfortable with trouble shooting, its pretty easy.
its pretty safe to say your PSU is toasted and i wouldnt troubleshoot with it. remove everything from the power source and unplug everything from the motherboard except video card (unless you have intergrated), 1 stick of RAM and processor. then hook up a good psu, but dont plug in the ac power cord yet.
find the CMOS jumpers and clear it. do this by either pushing the button or removing the pins into CLEAR and wait like 30 secs. then put it back the way it was and plug the psu ac adapter in. if the system will not POST or if the system powers on and no beeps its either
a)processor
b)motherboard
if it does beep, then the ram or video card is toasted. to determine if its a) or b), you would need a known good setup as control so you can test each part to determine what it is.
but from my experience its usally the psu going out and taking the motherboard. cpus and rams are pretty hardy unless you give them too much juice and video cards are the middle in terms of what would usually go.
anywahy good luck and hopefully it just need a cmos clear and a new psu.