Everyone wants Ace alternatives, whether they want something that uses the Ace2 framework or is just available for download off WAU or the site, but I'm more interested in what you think you can't live without that I may have never heard of. I may have a need I didn't even know about! I'm pretty familar with the addons available here -- what about ones that aren't? Be specific on what they do, why you love them and where I can find them, please.
Edit: For instance, I like Smartbuff. It's the best addon I've found that can do what it does. It'll buff me and my party/raid/BG with many ways to customize when and how it does so. You can find that on www.curse.com or www.wowinterface.com. It's alot like AutoBuff but will work for more than just self-buffing.
from wowinterface.com , BindPad and LootHog
Bind Pad gives you a drag/drop interface for spells and macros and lets you arbitrarily assign key bindings to them.
LootHog keeps track of /roll and gives options to announce the winner. helpful for pugs.