I'm using:
AddonManager
AdvancedAuctionHouse
AutoRepair
Better Loot Mod
ChatScroll
Class Swap Helper
Combat Log Mod
DailyNotes
FriendShare
Guild Online Sorter and Toggle
GuildChatColor
HearMe
injectHome
Inventory Viewer
Mob Info Tracker
nBuff
pbInfo
PK_Drop
PKWarning
QuestWiz (Zilvermoon - Update)
RoMail
Slash AFK
Sol
StopBugMessage
WoWMap
XPExtended
All of them can be found at
rom's curse site.
I recommend using the curse client to install and manage them btw.