What is the best Linux Dock available? I'm looking for a Dock that I can customize to make it look the way I like. It needs to be theme-able and have lots of configuration options.
Please limit one dock solution per answer
I think Docky is the best dock on Linux, fully configurable and theme-able with many useful add-ons. You can easily give it a try, you'll find it in the Ubuntu Software Center.
This is the one I use. It's main features:
The bolded features are the ones that I feel are more important.
Javier Rivera setup:
Cairo-Dock is a pretty, light and convenient interface to your desktop, able to replace advantageously your system panel! It features multi-docks, taskbar, launchers and a lot of useful applets. Applets can be detached from the dock to act as desktop widgets. Numerous ready-to-use themes are available in 1 click, and can be easily customized at your convenience. It can use hardware acceleration to be very fast and low on CPU.
There is also SimDock which is in the Ubuntu Software Center. I believe SimDock is supposed to be a lighter-weight dock. But others seem to not like it as much as the others. Remember though whichever dock you use will most likely need compositing (either Compiz (Visual Effects) or Metacity Compositing turned on) to work and function correctly.
Enjoy your dock :-)
Just a simple and highly customizable quick-launch tool.
Plank is the default dock used by elementary OS, and it is also installable in Ubuntu. It is based on Docky, and is rewritten to use Vala instead of Mono, which could make it a great option to consider if for some reason you don't want Mono on your system.
Note that Plank is currently still in development and is not available in the Ubuntu repositories yet. Thus, if you want to install it, you'll either have to add a testing PPA or compile the latest development build from source. See here for installation instructions.