'98 ram suspension options

first off, here's my new truck.

'98 Ram 4x4, 5.9 litre v8. 109k miles, rebuilt title. i got the truck today and i have to say, it's pretty sweet!

in my driveway


a shot of it dwarfing my roommate's passat


and down by the river


anywho, i'm looking at possible suspension options in the future. ultimately, i'm stuck with leaf springs unless i do some custom work, but i'd love to get some input. the truck will be used as a daily driver, as well as a sand toy on the weekends. the place i go four wheeling has sand hills, whoops, and a lot of rough terrain. I think in the end, i'll go with a prerunner style, and i think i'd like a little increase in suspension travel and capability to go with it. any suggestions? at this point, the only thing i can think of is going to 4 link front and rear  
My current ride:
1998 Dodge Ram