I've a good line but fibre will be available soon and have been looking at ISPs.
It's worth noting that plusnet's service is based on a 2Mbit upload speed rather than having the choice of 2Mbit/10Mbit with BT. Also the plusnet service has different traffic management policies than BT. Whilst they are clearer about what the limits are, i found them rather restrictive.
Kris
Sky Broadband Unlimited
Ashington (Northumberland) Exchange
Sky Netgear DG934G