Could you be a little more specific about what you want? I have a plot server that you can build on in creative. However, I get the feeling that you're looking to be a part of a build team for a server, is that correct?
I wouldn't mind hearing about creative servers as well. I've been playing on LOTRCircles for a while and I like the creative mods like carpenter's blocks & microblocks but interested in what my options are for creative servers.