Welcome to the Z.
with what Michael said. I've had full-time 4x4 in the past on my 76 Power Wagon. You don't want to go there. Dry pavement and 4x4 is not a good thing unless the front end is built for it. The trucks are not. You will be tearing up front bearings and other parts unnecessarily. The other reason you want to avoid it is that it will kill any gas mileage you get.
With the Hemi or the Cummins you'll get decent mpg when towing and plenty of power for playing.
We have a lot of forums for all kinds of topics, so you shouldn't have any problems finding a place to post questions.
We LOVE pics of Rams.
Here's how to post them: http://www.ramforumz.com/forumdisplay.php?f=73