Most interesting plugins for Compiz
I finally found a free minute to configure Compiz, so now I am all happy, because it is just amazing. I have lost any desire to go back to Vista. Anyways, here are some of them (in the order they appear in CompizConfig Settings Manager):
ADD Helper simply darkens all inactive windows letting you concentrate on your work in a focused window. I consider it very helpful.
Desktop Cube turns your desktop (you should have 4 workspaces available) into a cube that rotates horizontally every time you change workspaces.
Rotate Cube lets you rotate your 3D desktop cube with your mouse.
Cube Reflection adds a nice reflection to a cube.
3D Windows makes all windows in every workspace hang at a little distance from the workspace they belong to and from one another.
Cube Caps allows you to assign different pictures to the top and the bottom of the cube.
* You can also assign a background which might be animated or not.
Water Effect is amazing and makes your desktop something like a big puddle.
Paint Fire on the Screen is explained by the title, I think. Looks quite nice.
Wobbly Windows deforms windows when you move them.
Animations adds different kinds of effects to different actions you perform on windows. I set it on Random, and every time I do something with windows (minimize, maximize, close, etc.) something different happens. It also applies to pop-ups, tool-tips, prompts, etc.
Window Previews shows little previews for any window on the Taskbar.
There are many different plugins, but they are minor and usually automatically enabled.