I recently came back home to Sheffield from University. Down there we had a 20Mbps line which was unbelievable. At home we have very similar to what you have, on average a 4mbps line. The difference is unbelievable. Especially with the amount of work I do on websites on the Internet and when others in the house are using it at the same time.
Oh well – no hope for fibre-optic around here any time soon!