The first and most important mod in my book is rock sliders. On my Isuzu, when I was still figuring out "how to offroad" I managed to do a number on my passenger rocker panel. Sliders are cheap insurance, and most trips I come back from have a new scratch.
I looked at a bunch of options. I knew I wanted something bolt on, as being able to take them off is nice. I also wanted something with a good enough attachment method I could use a hi-lift jack on it in a pinch. I liked the way both the Shrockworks and RSG options attached. Ultimately I went with RSG as I liked having a kickout, and I like the long metal plate parallel to the frame.
I also decided to rattle can with bedliner instead of powder coating. Powder coating looks awesome, but if your going to be banging it up, rattle can is better. Got the old running boards off, rocksliders on, and the car already looked 10x more offroad worthy!