i've been looking at a few 98-2000 jeep limited/sports, the 4 door boxy ones, the 4.0l 6cylinder and 4x4 can be found for $2500-$4k, no problem. I'm looking at a black one today, leather, 4wd, cd, power everything, 145k miles but its only $2700, looks cherry too, plus its a 2000.
i've heard jeeps are like tanks, run forever.