Used to have a dedicated server with fdcservers. Started on the 5mbit burstable package. Was forced onto the 100mbit unmetered plan. Performance was dire with us hitting network contention a lot. Moved from fdcservers to a uk hosting provider and immediately our bandwidth usage virtually doubled.
This was 5 years ago.http://ask.slashdot.org/story/12/02/28/0029218/suggestions-for-music-hosting#