DD-WRT

... is the open-source firmware for my new router. I want to do per-MAC bandwidth tracking, and here are some leads.

• From the dd-wrt forum.
• Refers to Google code here.
• Possibly upgraded here.

Probably my best bet is to assume a control panel on the local PC (which is the situation I've got) manipulating a remote "sensor head" on the router. The router doesn't have a huge amount of resources, after all.