As long as you don't put it anywhere stupid like by a fireplace or backed up right against a wall, the ring of death shouldn't pop up. Id be REALLY pissed if it did tho
Anyways, has a lot better games that Wii at the moment, so it's definately worth it.
Oh yea, and don't move the 360 when a disc is playing. Just ask anyone from personal experience (mine says to put the 360 into the disc or something like that! lol