I replaced my OEM torsion bars with Sway-A-Ways and am quite happy with them. It results in a somewhat stiffer ride but no hopping and very good stability as the stiffer torsion bars push the tires against the pavement more than stock. I also replaced the deteriorating rubber bushings all the way around with Poly ones from Energy Suspension.I think I gave around $140 for the bushing kit.
Fun part was removing front control arm/ frame bushings. I'm sure there's easier ways of removing than what I did, which was drilling/ wire brush/ and propane torch combined with expletives directed at old bushings.
Of course while your'e in there, may as well swap control arms, links, etc. so you only have to go in there once.