Jamba, made by Jafula is quite possibly the most awesome Addon ever made for the community.

http://wow.jafula.com/addons/jamba This addon is Free




It's pretty much an all in one package, and a diamond in the rough. I use it exclusively now as far as addons go.
A quick snippet of the functionality it has.


Team
  1. Add all your characters into Jamba and designate a character as the master character.
  2. Commands available to switch master characters on the fly; change master based on the characters current Focus.
  3. Display health or experience bars of Jamba team members even when they are not in the same party.
Party
  1. Create a complete party from among all your characters with just a few clicks.
  2. Automatically set loot methods when creating a party – free for all, master looter for master and opt out of loot for slaves.
  3. Automatically promote the Jamba master character to be the party leader.
Quests
  1. Quest selection, accepting, abandoning, completion and watching on one character are mirrored by your other characters.
  2. Automatically accept quests and escort quests. Automatically complete quests with no choice of rewards.
Follow
  1. Displays follow status (following / not following) on a small screen.
  2. Option to automatically follow after combat.
  3. Ability to warn master character in a variety of ways if a slave stops following.
  4. Commands available to strobe the follow command every second (great for boxing melee characters where combat breaks follow).
Talk
  1. Whispers to slave characters can be forward to the master character as well as master replies.
  2. Can direct replies from slaves to a particular character from the master character (/w myslave @myslavetarget hello there).
  3. Can forward guild chat from one character to another.
  4. UI Errors and UI Information from slave characters can be forward to master character.
Taxi
  1. Slave characters automatically take the same flight as the master character.
Merchant
  1. Automatically sell grey items and sell other specified items.
  2. Automatically purchase items from merchants.
  3. Automatically repair at a merchant (optionally using guild funds).
Character
  1. Automatically deny duels, deny guild invitations, and accept resurrection requests.
  2. Warn the master character when health and mana fall below a certain percentage.
Target
  1. Provides a targeting system, using raid icons (moon, skull, cross, etc) allow mobs to be marked and their health to be watched.
  2. Marking a mob creates a /targetexact mobname macro on each character; allowing for quick target change using keypresses. Macros can be edited to crowd control.
Misc
  1. Configure Jamba options for all characters from just one character.
  2. Messages to master character can be sent to various places (guild, guild officer, private channel, default chat, etc).
Links
  1. Jamba discussion thread .
  2. Jamba website .
  3. Jamba slash commands .
  4. Jamba-Target documentation .




My hats off to Jafula, a very valuable member to our community.