you can try to search for some older star trek pc & video games. if i remember right, some of them had rendered 3d characters on the bridge. maybe you can get som screenshots or wallpapers or so...
Or you could try any of the more popular first person shooters. There are trek skins for almost all of them. Posing them would be up to you of course. Elite Forces would probably be your best best And of course there's Bridge Commander.
Of if you want to get more goofy, you can install some Trek skins into The Sims. Kirk and Spock hanging out in a hottub. Yes, that would be a very scary event mod.