I'm honestly surprised that I don't see more of them. I'm still waiting for the day when Atolm finally makes a gallery here, and we can all fave his artwork.
The people who have frequently visited TrekBBS (at one time or another) that I can think of right off the bat that have galleries are Madkoidish/Rushedart (not that I've seen him for a while), Ptrope, Ilhecreations, and Steve Tourageau.
I guess there aren't many of us, so I guess we should stick together. Come to think of it, I should also Watch your gallery.