Jacktar i can only sypathise with your position. Im in the same boat, i signed up for an 18 month contract with 3 in december 07 so have ages to wait before i can finally tell them to shove it.
I get similiar speeds even though im meant to be in a turbo area.
I also thought about cancelling my DD with them.
These are the worst IPs ive ever used, i also made the mistake of getting my wife and me on their contract phones, also over a year to go. Mobile phones keep cutting out etc.
I hate 3 with a passion.
And im very very unhappy
Please anyone reading this think before you buy from this company, they make slugs look fast.