I use limewire.  I'm pretty happy with it.  It's playback is not the best and I've liked other formats better but it serves its needs. 

Downloads are pretty speedy because I have a DSL line here but it all depends on the source, traffic and I'm sure other factors that I totally don't comprehend. 

Does limewire truly effect record sales? Naw!  Not when there's millions of kids out there who are impulse buyers with handfulls of cash and the desire to get their hands on today's hottest flavah!

PRH