I just picked my Ram 3500 up from the dealer this evening as I had to take it back to get the steps and bed liner sprayed in. (Bought it Friday) My 2011 Ram 2500 had the standard Ram steps, but I didn't like that they didn't help in getting into the front of the bed, so this time I had them install the wheel to wheel steps. So far they seem like a worthwhile addition.
Regarding the bedliner, the rhino liner stuff is pretty much the same as the linex now at many shops. What they use tends to depend on the equipment they have to spray it. My preference is the harder Linex spray in. I've got to say this dealer did a much better job of application that my last one and the finished product looks really good.