I got them from N-Fab, they are at
www.n-fab.com. I actually gave the owner some feedback and he offered that if anyone wants them with 4 mounting brackets per side he would make them up no problem. I think the cost was somewhere around $490 shipped. I preordered a while ago...I was waiting for them to be made.
To the sarcastic guy: no "claiming" of them to be rock rails...just cool looking steps. After putting them on, they are strong, I only have two brackets and I can jump up and down on them with no movement. I think with 4 brackets they would hold up just fine. I just really like the way they look.
One word of advice, let them know if you have the mud flaps and they will set them up about a half an inch shorter for better fit.