Broadband does not necessarily speed up surfing by a huge amount and downloads of around 60kbs are around the norm for 512k. Speed rating sites are little better than useless as the speed varies greatly during the day. These sites should be only taken with a pinch of salt. All BB(apart from cable) comes through BT, irrespective of the name of the ISP, so the choice of ISP is somewhat academic. It is unusual for contention rates to peak but if they do there will be little that anyone can do.