I don't know about ncalaskan's case, but I'll tell ya about mine

I hear the noise mainly when the frame flexes. If i go over a speed bump slowly, there is no noise. Going around corners however, there is always a crunch/creak sound coming from the right rear. Small things such as leting off the brakes will give me the noise as well...or abrubt acceleration. If I go under 5 mph, I don't hear anything. Turning the car, even in a parking lot, will make the noise every time. I often hear the noise as I get out of the car as well. And yeah, its pretty loud.
Any suggestions?