Thanks for the feedback guys. I was already leaning towards the ARBs, and you're confirming that this is the best way to go.
Now, which ARBs ? I'm thinking of perhaps the C-One ARBs, which seem to come with new bushes. Judging by some past threads, people seem to speak highly of the TRD yellows, but these are pretty hard to come by (poss from Japan ?), or alternatively the Hotchkis (from the US). Not sure if it's really worth the hassle of trying to import something, will either of these likely to be noticeably different to the C-Ones ? I'm only driving on the road after all, not a race track.