Yeah, if it's old enough, xbox.com will send you a new clunky one that won't catch fire. If you want to live on the edge, I can sell you the recalled one.
they sell a simular powercord at 99cent stores, the only problem is one side is a square shape, and the xbox needs 2 circles, all you need to do take a knife and shave part of the square side so that it can fit in an xbox, and it works perfectly fine.