Simple, yet elegant Facebook app for desktop?

Hey everyone. I have a bit of a quick question. I've tried looking before but never really found anything that was great. I've been trying to find a desktop application for accessing Facebook that is simple and with a clean UI. I was looking through the Mac App Store and raged a little inside to see that developers try to pass off an embedded FB Touch (mobile) version of the website as a native app.

Could any of you recommend me something better?

Growl integration would be great. Maybe an icon in the menu bar, though it's not quite as important. Can be from the MAS or downloadable from elsewhere.