Got the GSF bugpack on mine, but I didn't use the rear axle bush inserts that fit into the OEM axle bush. I did try, fitting them into brand OEM axle bushes, but they were a right pain in the arse, and would probably be a waist of time anyway.
I fitted the steering rack bushes, which don't seem to be much diference in feel, but I can't remember if I fitted the top mount bushes on the struts. (Will have to look when its stops peeing down

)
The bump stops look crap so I didn't bother with them.
But the front bushes made a hell of a difference from my knackered ones, as the car won't wonder around just for going over a white line on the road.
I would go for a powerflex or these
http://www.rallydesign.co.uk/product_info.php?cPath=533_741_761&products_id=5127 front and rear axle, next time, only because the waste of polly stuff from the bugpack jobbys, and the OEM rear bush was a total utter bstard to fit back in.