My wife I just bought our first one before Christmas. We have a stock standard r51 Nissan Pathfinder. Haven't done much with it yet. We're newbies to 4WDing so are going to get some lessons and then get out amongst it.
Defintely go with a club or people who you know have been doing 4x4ing for a while. I probably would take 4x4action with a grain of salt. Do everything NAAF has said. Another thing to be wary of is that there are different types of 4x4ers too:
There are people who like to drive extreme stuff that really know their (S word goes here) that will help you and be good for advice, but you wont be able to go with them because of the terrain and vehicles.
There are people who like to break stuff, or talk you into doing something silly, these people are to be avoided
Then there are good 4x4ers who will be patient with you and give you proper advice, find these people.
Then theres the final category, people who don't drive anything difficult, just tear up dirt and roll cars doing donuts etc and just make the rest of us look bad. Similar to "mang" i suppose.
Saw a few of these specimens last time I went to gunn point. Doing burnouts next to the road, shouting and were obviously pissed as newts doing all of this. Again, to be avoided.
Where are you located also I could maybe, maybe get you into a trip off another board?