Thanks for the info guys. Looks like the fluidampr is the unit to get judging by info on this site and NASIOC. I think $300+ is a bit much for a pulley but I guess that's just the price of the ticket for admission to the party. Stock is still an option and I'll call my local dealer today when they open to see if they have one in stock and what it costs. Current one lasted 14 years and 110,000 miles, so another 100,000 should see it through the end of my ownership of the car. Either way I'll stay away from the solid, light weight, pullies.
infosecdad: Thank you for the offer but I'd rather stick with something new. Money isn't the issue so once I call the dealer I'll know if I'm ordering stock or the fluidampr from Summit.