Vidalia

Vidalia download

It lets you start and stop Tor, see how much bandwidth you are consuming etc
The link is missing.
Notify me when it is available.

Alternative software

SoftPerfect Bandwidth Manager
Bandwidth limiter and traffic shaper.
3.1.7
10-Strike Bandwidth Monitor
You can monitor the Internet and local network traffic usage.
3.5
MING Bandwidth Monitor
Powerful bandwidth meter, monitor and controller.
3.0
Bandwidth Usage Monitor
Bandwidth Usage Monitor keeps track of your broadband data usage.
1.0
NBMonitor Network Bandwidth Monitor
NBMonitor tracks your Internet bandwidth upload and downloads usage.
1.5.1