I think he's looking for places that don't show you a general picture of a coral, they show you THE coral you'll get. You've covered all the sites i can think of...
Here is another that I didn't see listed. Flying Fish Express's Aqua Jewels by Walt Smith usually have some really nice looking stuff. The prices are sometimes a little high in my opinion. http://www.ffexpress.com/inverts/walt_smith.htm
I second Dr. Mac's Top Pick colonies. I haven't much luck with Cquarium, most of the time the colonies came in DOA or soon after. Steve Tyree at http://www.dynamicecomorphology.com/ also has some very nice stuffs. JME.
HTH