Cherokees are a good choice, IMHO. They weigh about the same, model for model, as a Wrangler (especially the '97-04 Wranglers) and they weigh considerably less than the new Wranglers.
As I recall, the average '99 Cherokee should come in around 3200 lbs. soaking wet. If that's too heavy, try a pre-'97 as they're about 150-200 lbs. under that -- mostly due to the use of the fiberglass liftgate used from '84-96.