
Reader Ran Mokady at Hack-a-Day submitted his How-To for a DIY Xbox 360 powersupply. He writes, "I have been running my console off a 250W computer PSU for a week now with no problems." The steps include: cutting the power supply cable; splicing the two cables together; rigging the ATX PSU to start up; and lastly, plugging it into the 360.
While most of us would follow the Major's instructions and send our unit back in, Ran purchased a Japanese 360 (probably because he could get one), so the turnaround time for repair would have been prohibitive. Something to keep in mind if your power supply goes to hell and you couldn't endure the turnaround time.
[See also: Eliot from Hack-a-Day's guide on hacking an iPod dock to your 360, pt. 1 & 2]

