Cartographer http://wow.curse.com/downloads/wow-addons/details/cartographer.aspx Cartographer is a modular, lightweight, and efficient framework for manipulation of the world map. It is based on Rock and other libraries of the wowace community.
Quest Helper http://wow.curse.com/downloads/wow-addons/details/quest-helper.aspx QuestHelper tells you how to finish your quests in the easiest, fastest manner. It includes a database of quests, monsters, and items, telling you the exact location of that dang Perfect Satyr Horn you can't find. It also computes the fastest path to complete all your quests - and gain experience - as quickly as possible.
HealBot Continued http://wow.curse.com/downloads/wow-addons/details/heal-bot-continued.aspx HealBot allows for 20 key mouse combinations to cast any beneficial spells.
HealBot allows for 20 key mouse combinations to cast on disabled bars.
Any usable item can be added to all combos.
Any existing macro can be added to all combos.
Target, Focus and Assist can be added to all combos
HealBot can track and display who has aggro
HealBot can be used for decursive functions
HealBot can be used for monitoring and tracking buffs and buffing
HealBot will track your HoT's
HealBots appearance can be configured and preferred appearances can be saved as skins.
HealBot can show party/tanks/checked targets/extras in a raid, extras can be filtered and sorted.
Multiple HealBots in a party/raid sync incoming heals
Healbot embeds libHealCom and libQuickHealth
HealBot will accurately range check at all times for spells and items.
HealBot has a built in res monitor and is compatible with CTRA (CTRA not required)
HealBot has a SmartCast out of combat option, this will cast a spell in the following order..
Recount http://wow.curse.com/downloads/wow-addons/details/recount.aspx Recount is a graphical damage meter written by Cryect. Recount (Preservation) is an attempt to preserve it through the 2.4 patch and fix up some minor things along the way. If Cryect returns the project really should be wholely his and he can keep or abandon any changes I've made here.
Atlasloot Enhanced http://wow.curse.com/downloads/wow-addons/details/atlasloot-enhanced.aspx AtlasLoot Enhanced is an UI mod allowing for loot tables of bosses to be browsed whenever needed within the game. It can access full item tooltips, show drop rates, allow items to be chat linked and to use the dressing room.
Omen Threat Meter http://wow.curse.com/downloads/wow-addons/details/omen-threat-meter.aspx Omen is a threat meter.
Basically, enemies in WoW decide who to attack by deciding who is the most threatening based on the abilities you use. What Omen does is provide accurate values of your group's relative threat level on individual enemies, so that you can see when you're in danger of pulling aggro (or, if you're next on the snack list if your tank bites it). This info is usually only critical in raids, where only tanks can survive aggro, but it's useful for any multi-player situation.
Titan Panel http://wow.curse.com/downloads/wow-addons/details/titan-panel.aspx Titan Panel adds a control panel bar on the top and/or bottom of the screen and allows a framework for extensive plugin support.
Theese addons r most popular addons on the world. You can find more
http://wow.curse.com/downloads/wow-addons/default.aspx. 
Good luck and Have fun ....
Mon Feb 02, 2009 7:01 pm by heiðdalur
Subject: U all need them :) ( addons and inscriptions ) 
