[gentoo-user] Torrent with dynamics throttles

[Daniel Hilst Selli]

I was wondering about torrents, here is the case

I love to download stuff through torrents.. so there is aways a client 
downloading/uploading something.

When I want to use my band I just set torrents limits, so youtube videos 
charges fast, and sites load fast too. When I go away I first unset the 
limits, so my torrents go to full speed again.

This set/unset is boring.. Is there any way to dynamic set my torrents 
limits, so when I'm using internet it frees some bandwidth  to me, and 
when I stop to use it goes full speed again?? Is there any torrent 
client with that feature? If not, is this implementable?

Thanks in advance!