I recently encountered a Youtube video which featured Gnome Do with Docky. Then I dumped the Cairo Dock I was using and replaced it with Gnome Do. I have also tried kiba-dock which is quite buggy (it is in developement). I also tried the Avant Window Navigator but found it was not so good to my liking.

The Gnome Do features the Advanced indicators which mimics the OS X dock and it is totally awesome. Continue Reading