I need some network tools...

[killerkebab]

I have a home network centred around a Netgear DG836(?) router. All great and all, but I need to know if I can use a few tools to help me monitor it.

I need a network bandwidth monitor. My sister uses obscene amounts of upload for useless crap like shoutcast and sending MP3s to everyone of her school friends. I want to know how much of the DSL bandwidth she is raping from her machine.

Along those lines, I need a network bandwidth limiter. I want to limit her upload on the internet to something like 5kb/s because all she does otherwise is browse the web, and I don't think she'd need any more than that.

Is there a way to find out what ports she is sending data on and which application on her PC is using said ports? When I wanted to block her shoutcast I went on her PC using Remote Admin and looked up the shoutcast ports and then blocked those on the network. However for things like MSN sharing folders (to which she added something along the lines of 800(!) mp3s) I don't know which ports exactly so I could use some sort of monitor which can tell me which application is using what ports and how much bandwidth. However that isn't quite as important as the first two tools, which I could really use.

I haven't had a game with less than 300 ping in days