Moving House

I've got a feeling this is going to be a stupid question but hey ho...

I am about to move into a new house and as such I was planning on ringing up BT tomorrow to get the phone line connected. A conversation with a friend who is also moving in to this new house has raised a question.

He has yet to cancel his current bt contract so has suggested that we maybe just get his account moved to the new line. Which to me sounds good in theory except he also hasn't cancelled his broadband. I assume this is attached to the phone line rather than his account?

Basically I want to be able to sign up to an ISP ASAP. If his current ISP is going to prevent me doing so then I would rather just sign up a new account with BT...

TIA

If he transfered his own account, and there is a marker on the line, then it would cause a delay.
How it should work is that ADSL has a seperate ref number (caled a CBUK) but the BT systems also link the ADSL to the telephone number, so if he moved his account over and the BT systems still see it with ADSL, then you would not be able to order as it will think it already has ADSL on it. This will go away as when there are account changes like this, the BT system will automaticaly place a cease for the ADSL, but this can take up to 5 days to complete allowing for the database to update.
If you wanted to be able to order the ADSL as soon as, then a new line and phone number would be best.

a "Home Mover" arrangement of an existing phone line and broadband deal ought to be the quickest route.