As far as I know they will be making the rubicon in 2010.
Depending on how rough you intend to be with it and how much work you want to do with it, the rancher AT might be a good choice also. The AT in the rancher is redesigned to be better than the previous models and it's a bit smaller and sits lower so has a lower center of gravity. It will be cheaper too.
Just depends on what you really want it for though.
As for the wheels, I don't have a great deal of experience, but I just sold an 86 machine with the original steel wheels, so I wouldn't worry much about longevity.
Depending on how rough you intend to be with it and how much work you want to do with it, the rancher AT might be a good choice also. The AT in the rancher is redesigned to be better than the previous models and it's a bit smaller and sits lower so has a lower center of gravity. It will be cheaper too.
Just depends on what you really want it for though.
As for the wheels, I don't have a great deal of experience, but I just sold an 86 machine with the original steel wheels, so I wouldn't worry much about longevity.