Is it a rapid click or just a few spaced apart. Plus is the noise only apparent when you are moving slowly or does it make when you are doing say 60 around a bend.
Has your car been lowered?
How does it handle, does it drive ok normally? (ie:do you think the noise effects the driveablility of the vehicle?)
Check bearing plates
Check spring saddle
Check steering rack mounting bushes
You should check balljoints but I would doubt these would be the problem, they would knock rather than click.