XBox360 and the Ring of Death

I don’t know about you, but the Ring of Death is probably the most annoying about the 360. You would think that after all this time that all these problems would be fixed, but sadly no. Now, I have 2 360s, one I actually bought a few months back and the free one I got from Rewards1.com. The one I bought, recently it got the Ring of Death while I was playing Call of Duty 4 and that pissed me off. I contacted Microsoft and I’m waiting to here back from them, but luckily I still have another. I’m wondering if this has happened to anyone else and if it has then what did you do about it?