This is my main info bar. I run the i3 Window Manager, but this conky bar would be usable with any setup or WM that can host conky in a bar. I have in the top of my screen as you can see in this screenshot:
The numbers at the top left is i3 showing the desktops, while the top right shows in the system tray (SlimBook Battery and nm-applet for wifi connections). The other text is all conky.
The conky bar with each element annotated:
The conky configuration (conkyrc) is the main file and includes extensive info on all the parts at the bottom of that file. All underlying scripts are in the scripts directory.