Start with the basics, rock sliders to protect the cab, solid front and rear bumpers, recovery points front and rear, recovery strap(not chain), hi-lift jack, air system and tank(reseat tire beads), place to store it all and tools for making trail side repairs. After that just wheel it with the 32's and open diffs until the tires are due for replacement, maybe bump up to 33's if the 32's are more highway biased at the moment. At that point you should have an idea of you what type of wheeling you want to do, and build it to fit your needs.
If funds aren't limited right now, I would consider either a single transfercase with 4.70 gears, or dual cases, being able to control your approach/descent speed will make it a lot easier on you and your rig.
