I got mine from summit, but they were not powder coated.  I had to paint them my self, and the paint doesn't hold up well (every time you pull a weight, or put one on it messes up the paint).
I have 2in because I wanted to be as wide as possible. However now I wish I would have just gone with the ones listed from 4WP above. They were cheaper, and they are coated.

PZ