I decided to upgrade to Ubuntu 11.10, without using Unity.
First, I installed "gnome-session-fallback"
I logged out and back in using Gnome Classic.
I added launcher-icons to the top panel by alt-rightclick on the panel. When I tried to use the kill icon, everything stopped working.
I would not recommend that anyone upgrade to Ubuntu 11.10 at this point. I don't know what is going on with Ubuntu these days.... but making it faster and more stable seem to have a lower priority.