I've seen quite a few posts about the "death wobble" and I just started experiencing the same ugly shake at around 45 mph, also when i turn I hear a weird kinda rattle sound, kind of sounds like cv joints on an old eclipse I had. What are the most common things other than bad tires that cause this or some things to check so I can narrow down the damage and get an idea on the repair costs? I also had new rotors put on the front about 6 months ago.