The following addon mods are found on: http://files.wowace.com/#
1. FuBar_GarbageFu (auto dump your gray item)
2. FuBar_MoneyFu (a sweet accounting of your gold and silver)
3. FuBar_tcgTradeskills (reminds me when a transmute is ready to be done)
4. FuBar_GuildFu (more detail about guildies)
If you do the auction house much then EasyAuction v1.12 from curse gaming is a must. It remembers all those prices I list stuff for ... and I sure can't remember them.
If you have addons you like a lot, let us know. thanks