Indeed I have used such software before!
Netlimiter is a very functional one.
It allows you to:
set an upload/download limit for different applications.
limit the amount of bandwidth incoming/outgoing from different IPs.
make zones for making rulesets.
schedule when certain rules are applied.
http://www.netlimiter.com/scrshots.php....It works very well and has a firewall built in....looks like competition to me

This sort of thing seems to be right in Comodo's set of expertise, such features would be a nice addition to the Comodo firewall
Thanks for considering
