sorry, i was just thinking that if you're looking for a quick resolution, that might be your best bet.
the main problem with fixing anything like this is in diagnosing it; does it make the noise when running the rack from lock to lock whilst the car is stationary? if it does, have someone do that whilst you get down and try and find out where it's coming from - if it's coming from the suspension turrets, it'll be the top mounts and, if it's coming from underneath the car, you need to go through the following (in no particular order):
- rack and track rod end balljoints
- bottom arm bushes/balljoints
- arb bushes
- discs/calipers
- hubs
- driveshafts/cvs
- subframe bolts
- engine mounts
hope that helps a little