Don't think so SS but they should. They are outrageous.
Looks like the winner might well be Pipex. £23 per month, no connection fee and all you need is the modem at about £50.
However, if you have cable. The OUTRIGHT winner is NTL at £15 per month and they will charge you a small rental fee for the modem. Saw it working yesterday - brilliant. ONE piece of potential aggro to some will be that NTL is NOT in the high download bracket. You need to check that out.