I'm settling for the system monitor indicator (indicator-sysmonitor) for now since there doesn't seem to be any good alternative (for natty) at the moment...
does anyone know the keyword for disk usage or network usage?

More specifically, when I go to the preferences window for the indicator I see the following string:
"cpu: {cpu} mem: {mem}"
What do I put in the braces if I want to see I/O or network usage?

EDIT:
I couldn't handle not seeing my network and disk usage so I put together something that will show that along with the cpu. Its one of the answers to this question. It will have to do for a half a year until there is a real monitor.

The indicator-sysmonitor project is extremely new having first released at the end of March this year. My recommendation is to create a request on LaunchPad, here, to see if the developers would be interested in adding this capability.

I couldn't handle not seeing my network and disk usage so I put together something that will show that along with the cpu. Its one of the answers to this question. It will have to do for a half a year until there is a real monitor.
–
krumpelstiltskinApr 28 '11 at 3:00