ORO makes them as well, I think they do the diamond plate variety.
As far as TBT, I hope their powdercoating has improved. The powdercoating on mine is coming off after less then a year. The worst part is that I ordered them bare steel, but I took what I got. I have heard they had some problems with that though, and that they have fixed whatever it was.
Oh yeah, and the bushwacker ones are plastic. Just so you kow beforehand.
You can do things the right way or the wrong way.
Or you can do it MY way...which is like the wrong way, only faster.