[tonythetarga]

could easily be drop links which is very common wear item that produces that sound. If the rubber boot is damaged they wear pretty quickly. Doesn't take much movement either to make the sound.
if you think subframe, look at the bolts and try a wrench on them. If they're tight, it's not the problem. Get the car off the ground and unload the front end. Remove the wheels top eliminate the extra weight. If the subframe is loose, the torque spec will no doubt be forthcoming.