Disaster of apocalyptic proportions

Argh! My Xbox died last night and is doing 3 red flashing lights of death at me. If I can't resurrect it I will lose a truly horrific number of life hours spent 'Rimming and leveling up my Nordnerd to 33.  All because I was not wise enough to save my games in the cloud instead of the hard drive.

The internet tells me that my power supply might need replacing, but now that I try to buy one on Amazon I discover that every single model of Xbox 360 has a different power cable, with varied voltages, and even the original Xbox has several different versions, so you have to look at the back of your box to see which one to buy.

TRIPLE TSK and GRRSKI!!!

I might axe something, if only I could get to my axe...