What I carry is similar to what Deb posted...
On Amazon HERE
We have a backpack that holds all of our gear that we use if we are going to be on a trip or something but for just carrying the camera around, I just use the holster. My lens is an 18-200 (I think) so it is pretty versatile. I have other lenses but most of the time I just keep the most versatile one on it.
I have to say, I get lots of comments and compliments on it. It is so easy to throw over my head, across my chest and just wear like that. I can't stand to have the camera strap around my neck, but the holster works great.