My 1994 Trooper is sputtering to it's end at 180,000 miles and I am looking at a 2000 Trooper LS with 90,000 miles. I am interested in any personal experiences with this specific year Trooper regrading its reliability.

Sorry to hear of your '94's near death. Ours is still going but you never know till when???

If you're going to hold onto it for the long haul, get the the newest and lowest mileage Trooper you can, to avoid inheriting the problems of others. I try to live by this advice at all times when buying a used vehicle.