Was chatting with @Celax about random old games this morning. Suddenly feel the urge to play this again...
I was always more into themed specs, than I was into the better performing ones (sometimes they overlap, though). Made one of each class with a themed name for the spec I will be playing.
Most likely starting with an Elementalist Druid. Spawn Tornadoes and hurl Molten Boulders all over the place!
Have you ever tried playing singleplayer as Pacifist Paladin? Basically you progress through the game using thorn effects and items with "x% chance when you're hit to cast y spell" but never attacking.
Very fun and you can actually progress quite far without attacking. I'll let you figure out how to get started yourself