I got an email from Simon who's looking for a solution to monitor or throttle the bandwidth of another user on his network because he thinks she may be torrenting. If anyone has any ideas, recommendations or suggestions for him, leave a comment or send me an email and I'll pass on the information.
Useful links
ZeroShell - http://www.zeroshell.net/eng/
IPCop - http://www.ipcop.org/
Network Traffic Measurement Tools - http://en.wikipedia.org/wiki/Network_...