The actual rocker panel part is no problem. I'm gonna probably use 3/16" thick angle iron. I'm interested in what people have done for a rock slider. I also need to weld on some kind of side step so my girlfriend can get in....she's only 5 feet tall.
What I'm thinking of doing for the slider is welding on a piece of 1" x 1" square tubing on the underside of the rocker panel.
For the sidestep I'm thinking of getting long piece of 1 1/2" round, solid steel (Solid is probably overkill so if it's too expensive, I'll look into a thick walled tubing instead)and somehow bending the ends in and welding them onto the side of the rocker panel similiar to Utah_jeepster's but it'll be sticking straight out to the side. I'm still undecided on how I'm gonna do this so any other suggestions or pictures would help.