I got my 360 about a month ago, got the "rings of death", followed all the steps, still got them... unplugged it for a while then came back plugged it in and it worked again... happened again for the second and third times the last two days... called microsoft and they are sending me the box to fix it.  I'm a little disapointed that a 400 system has this problem, but it's just my luck.. my Wii also broke so I guess I should just stick to PC gaming!

With the problems I've had so far I would still highly recomend one, with Crackdown as a first game choice.