Rear Tire Wear, What to Replace First...Looking for Experts

My passenger rear tire is wearing very bizarrely. I get the car aligned often, but it's always this side that is the issue. It wears not on the very inside edge, but the inner quarter-way point if that makes sense. If it helps my steering wheel needs to be turned more and more right the faster I go.
What should be my plan of attack? Should I try swapping to new rear lower control arms? Should I replace all of the arms in the rear including the tie rods, etc? I just want this fiasco of burning through tires to end. It's not hydraulic related and it's not height related. It only occurs on the passenger side.
This is a recent phenomena within the last year. Thanks.
check this out:
http://www.aa1car.com/library/tire_wear.htm
i'd try and diagnose the problem as closely as possible before replacing parts at random

It is height related,look at that drop and the negative camber
plain as day it has got to be -4
it is putting tremendous stress on the arms and the bushings and the tires.
No link or camber bushing is going to correct that without major work.
You do have links installed don't you?
Last edited by ohlord; Jan 30, 2011 at 06:22 PM.

133,000 miles and I've never replaced anything in the rear. The front has been taken care of and there is nothing wrong there.
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