Yes mate i have exactly the same problem, wear on the joint above the rack on the column, my local garage is ordering one in for £140 + vat, and recon 2 hours of work at £70 +vat to fit it. but that is a williams one, if the price is much different i dont know.
Its getting fitted on friday, so hopefully should be the end of the car wondering. I found it really noticable under quick accelleration.