Do them yourself, not a bad job at all. Takes about two hours to do.
I got mine from local parts shop - $48.00 each. Even though he said he couldn't get TRW arms, they came in stamped TRW - go figure!!
Make sure you tie up the lower suspension parts - don't let them just hang. While your under there, get a good look at the other parts/bushings checking for worn out stuff.
Good luck.
Mark
'93 SC