I've always been partial to tank and dps, two low maintenance roles in a traditional party. Back when I played Everquest live in 2000 I had a Paladin and a Monk I'd trade off on back and forth. Though I never got to do raids it was still fun to do small pick up groups in dungeons like Crushbone or Blackburrow where I tanked on the Paladin or did assist dps on the Monk.
I was thinking about rolling a mage on eq project 99 to try out the pet class.
I raided with a mage on live for a bit, its a fun and can stand entirely on its own. If you get a regular gaming buddy look for shaman since they complement you, rangers not so bad neither.