I tend to change desktop environments almost as often as I switch distributions. My newly acquired laptop came with the GNOME desktop environment, configured in a pretty generic manner. It's functional, sure, and its appearance can be altered easily.
Late last weekend, the Avant Window Navigator (Awn) and Avant Extras teams released Avant Window Navigator 0.3.2. I've used other dock applications in Linux, and while I've always liked the idea (and look), they were too rough around the edges for day to day use.
I've been running AWN in lieu of the lower GNOME panel for several days, and I'm really pleased. It's stable in my 64-bit Ubuntu install, and configuring the dock to behave (and look) as desired is simple. That's not to say there aren't quirks, but none have been deal-breakers.
