When I was in the market a little over a year ago for a new Jeep, I was specificly looking for a TJ Sahara Edition. I've wanted one ever since I saw it at the 2000 Los Angeles Auto Show. Finally, one day I came across a 2000 TJ Sahara Edition on ebay for $10,000. It had all the goodies, and it was in perfect shape! It was all stock, except for one thing. He added 31 inch Mud terrains! Very Happy Although there was one thing, they were a brand I have never heard of, so I was a little skeptical at first. But after driving on them for 40k miles, I gotta say that they have left me impressed. I did some research and found out that Definity is a marque of Cooper Tires, made just for Pep Boys. Sold at just around 100 bucks per tire, they're a great value.
As far as road manners go, they're pretty quiet for mud terrain tires. However, they are mud terrains, so you get the howling at speeds above 40, and the rumble below 25. Despite that, they behave well both on and off road, and wear evenly too. I've even done some powerbreaks with them
The only problem I have with these tires is that they tend to chunk off a little bit. But then again, I do abuse tires. They're only 2 ply, which can scare some people, but I haven't had one tear apart. But with an aggressive tread design that lasts, they look really good on a Jeep! The best part is they have siping, as opposed to BFG M/Ts that don't. Big plus. They're not the best in the rain, but I'd trust them more then the BFG's.