If you are looking for a good shock in the $150 to $200 range, run a non-resevoir Bilstein from RCD Classics (
www.rcdclassics.com) they have shocks that are valved specifically for bagged vehicles. A cheap resevoir shock at that price is not a high quality part. If you really want to spend the coin though, Parker is right. King is the way to go. King and I have come up with an ultra high-end resevoir shock for the airbag crowd. They are like two shocks in one. At ride height they ride normally, but when you are about 2" off of the ground the shock get stiffer, keeping the vehicle from hitting the ground. That portion of the travel is externally adjustable too. They do cost $1000 but if you want the best...