bandwidth for the rest of my needs

I'm interested in something or some way to limit the bandwidth in limewire when I am surfing. I have all availble for uploading. And between that and my outgoing connections my surfing gets pretty slow. I don't want to lower my outgoing connection though
What I would like is to be able to vary my bandwidth between limewire and any other app that might need some. Hopefully "on the fly" so to speak.
Can I do that in limewire or is there some other software I can use?
Thanks
Mick
mick_@bellsouth.net