Man, that Lion King mod looks absolutely fantastic, but I thought mods are only for single player? I hope not, because that mod would be great.
Anyway, here are the plugins on a server I used to play on that was extremely stable and mostly griefer/hacker/etc.-free. Too many to write down so I'll just post a pic:
EDIT: Some of these are definitely expendable, but most of them are really good plugins and should keep any server a happy environment and stable at the same time.