re: Replace your Steering Stabilizer, you'll be surprised.
When I got my roadster with 17,000 miles, the steering was as tight as a drum. Now at 24,000 miles, it felt like it had about .5 inch play at the wheel and was wandering - very annoying! It required constant correction to maintain a straight line, especially on windy days (pretty common occurrence here in Oklahoma).
I just changed my dampner (20 minutes total)...when I pulled out the old one, it felt about the same as the new one, so I was worried that it wouldn't make any difference -- how wrong I was! The steering is back to the original feel - no play, no wander! It goes exactly where I want it to and stays there.
It really renewed my enjoyment in driving my car - very hard to do since I love driving it so much! Unbelievable return on a $30 investment.