Thanks for the replies.
Just ran a new BT speed test and got 8.82 Mbps which is pretty good...but give it a few hours and it'll be back down to 1.
Edit: Well it looks like my prediction of a few hours was a little generous, as was the estimation of 1 Mbps.
Speedtest.net just clocked me at a whopping 0.18 Mbps.
ThinkBroadband's speed test gives me 0.2 Mbps for both down and upstream!
Edited by Nick2009 (Thu 29-Mar-12 16:16:26)