We're being forced to look at rather expensive leased lines due to our distance from the exchange. Even on the new ADSL2+, we can't get much more than 3MBit/s but more importantly, we need to improve our upload speed.
Several vendors have offered us special deals if we sign up for three years before the end of October.
Call us cynical, but is something about to be launched in the UK that means leased lines will either be much lower price or under threat from other technologies. I assume that it could be ADSL2+ itself - if that's the case, we're still stuck :-(