The "soft" poly-bushes from Jeeperf are the best option IMO;
http://www.jeeperf.com/product-page/...al-bushing-set
Seem to be lasting much longer than OEM, and still pretty soft.
Think a few of us have been running them for a while with good results, ie, not flogging out 20k after installing them, like the OEM ones and aftermarket sometimes do.
Just note the the installer would also need to press the Jeeperf bush into your original front bracket.
Where-as the OEM front bush comes already pressed into a new bracket.
Also have a vague memory I've seen typical "two piece" poly bushes from Superpro, which would be easier to install, but probably a bit harder than the Jeeperf ones.