I know that trouble - what you need is the Real Blokes' Fix.
I'll give you the steps in the correct order.
Strip some electrical wire.
Turn main power off. (very important!)
Unscrew wall socket.
Connect stripped wires to each wire in socket.
Connect other end of those wires to the positive and negative/neutral points on your PC. If you don't see them immediately, the - is the one that looks like a USB port and the + is at the back of your DVD reader.
Turn main back on. (Then off again quite fast!)
Disconnect wires and screw socket back in.
Claim insurance.