Quite a number of suspension bushes and components for the X150 XK/XKR, X200/202 S-Type and X350 XJ are made by the ZF company Lemförder, and are available to buy from ZF or one of thier distributors.

Wishbone bushes
Control Arm bushes
Tie Rod Ends
Anti-roll bar links
Steering rack from the X350
Subframe bushes from the X350

Parts can be found in the ZF online catalog WebCat 3

Just do a drill-down search for Jaguar, and the model of your car.

Nice of them to list the Jaguar part numbers as a cross reference

I've uploaded PDF's of the most commonly needed items.

Cheers.