I found a tiny but useful utility you may be interested in.
It’s called TinyResMeter and you can download and run it for free.
TinyResMeter is a free utility that displays useful realtime system resource information (CPU speed, usage, RAM, processes, disk space, swapfile, etc) in a customizable format.
It’s not as pretty as the meters in Norton SystemWorks or other commercial programs but it is under 100k, doesn’t modify the registry and doesn’t add any new DLLs to your system.
The next version is supposed to have net connection speed info too.