Personnally I hate the idea of spyware - but I through a 6Gb drive in a system and loaded up a few of these monsters.
Those background processes and bandwidth usage add up.
Since Limewire is GPL - someone went in and did a sanitized version called Clean LimeWire - which is what I use currently.
you can try going to
www.cleanlimewire.com
It will most likely redirect you - maybe to
http://cleanlimewire.jaha.dk/index.html
Give it a shot.